Cita APA (7th ed.)

Cook, D. R., & LaFleur, N. K. (1975). A guide to educational research (2ª ed.). Allyn and Bacon.

Cita Chicago (17th ed.)

Cook, David R., i N. Kenneth LaFleur. A Guide to Educational Research. 2ª ed. Boston: Allyn and Bacon, 1975.

Cita MLA (9th ed.)

Cook, David R., i N. Kenneth LaFleur. A Guide to Educational Research. 2ª ed. Allyn and Bacon, 1975.