Hargis, G., A. K. Hernandez, P. Hughes, J. Ramaker, S. Rouiller, and E. Wilde. 1998. Developing quality technical information: A handbook for writers and editors. Upper Saddle River, NJ: Prentice Hall.

Hargis, G. 2000. "Readability and computer documentation." ACM journal of computer documentation 24, no. 3:122-131.

Harris, A. J. and M. D. Jacobson. 1973. The Harris-Jacobson primary readability formulas. Paper presented at the Annual Meeting of the International Reading Association, Denver, CO.

Harvey, H. D. and P. Fleming. 2003. "The readability and audience acceptance of printed health promotion materials used by environmental health departments." Journal of environmental health. 65, no. 6:22-29.

Hochhauser, M. 2002. "The effects of HIPAA on research consent forms." Patient care management 17, no. 5:6-7.

Hooke, L. R. et al. 1979. Readability of Air Force publications: A criterion referenced evaluation. Final Report. AFHRL-TR-79-21. Washington, D.C.: U. S. Air Force. Eric No: ED177512.

Horn, E. 1937. Methods of instruction in the social studies. New York: Charles Scribner's and Sons. (Report of the Commission on Social Studies, American Historical Association).

Hornby, P. A. 1974. "Surface structure and presupposition." Journal of verbal learning and verbal behavior 13:530-538.

Huckin, T. N., E. H. Curin, and D. Graham. 1991. "Prescriptive linguistics and plain English: The case of "whiz-deletions." In Plain language: Principles and practice, ed. E. Steinberg. Detroit: Wayne State University Press.

Hull, L. C. 1979. "Measuring the readability of technical writing." Proceedings of the 26th International Technical Communications Conference, Los Angeles: E79 to E84.

Hunt, K. 1965. Grammatical structures written at three grade levels. National council of Teachers of English Report No. 3. Urbana, IL: National Council of Teachers of English.

Johnson, W. 1946. People in Quandaries. New York: Harpers, Appendix.

Johnston, C., F. P. Rivara, and R. Soderberg. 1994. "Children in Car Crashes: Analysis of Data for Injury and Use of Restraints." Pediatrics 93, no. 6 pt 1: 960-965.

Kahane, C. 1986. An evaluation of child passenger safety: the effectiveness and benefits of safety seats. Washington, D. C.: National Highway Traffic Safety Administration.

Kemper, S. 1983. "Measuring the inference load of a text." Journal of educational psychology. 75:3, 391-401.

Kern, R. P. 1979. Usefulness of readability formulas for achieving Army readability objectives: Research and state-of-the-art applied to the Army's problem. Fort Benjamin Harrison, ID: Technical Advisory Service, U.S. Army Research Institute. (NTIS No. AD A086 408/2).

Kincaid, J. P., J. A. Aagard, J. W. O'Hara, and L. K. Cottrell. 1981. "Computer readability editing system." IEEE transactions on professional communications March.

Kincaid, J. P., R. P. Fishburne, R. L. Rogers, and B. S. Chissom. 1975. Derivation of new readability formulas (Automated Readability Index, Fog Count and Flesch Reading Ease Formula) for Navy enlisted personnel. CNTECHTRA Research Branch Report 8-75.