Free, M. N., Ryan, J. M., & Hess, R. K. (1991). Handbook of statistical procedures and their computer applications to education and the behavioral sciences. American Council on Education.
Chicago Style (17th ed.) CitationFree, Melvyn N., Joseph M. Ryan, and Robert K. Hess. Handbook of Statistical Procedures and Their Computer Applications to Education and the Behavioral Sciences. New York: American Council on Education, 1991.
MLA (9th ed.) CitationFree, Melvyn N., et al. Handbook of Statistical Procedures and Their Computer Applications to Education and the Behavioral Sciences. American Council on Education, 1991.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.