APA (7th ed.) Citation

Cohen, L., & Manion, L. (1980). Research methods in education (3rd ed.). Routledge.

Chicago Style (17th ed.) Citation

Cohen, Louis, and Lawrence Manion. Research Methods in Education. 3rd ed. London: Routledge, 1980.

MLA (9th ed.) Citation

Cohen, Louis, and Lawrence Manion. Research Methods in Education. 3rd ed. Routledge, 1980.