APA (7th ed.) Citation

Cohen, L., & Manion, L. (1985). Research methods in education (2nd ed.). Croom Helm.

Chicago Style (17th ed.) Citation

Cohen, Louis, and Lawrence Manion. Research Methods in Education. 2nd ed. London: Croom Helm, 1985.

MLA (9th ed.) Citation

Cohen, Louis, and Lawrence Manion. Research Methods in Education. 2nd ed. Croom Helm, 1985.