Cita APA (7a ed.)

Cohen, L., & Manion, L. (1994). Research methods in education (4th ed.). Routledge.

Cita Chicago Style (17a ed.)

Cohen, Louis, y Lawrence Manion. Research Methods in Education. 4th ed. London [etc.]: Routledge, 1994.

Cita MLA (9a ed.)

Cohen, Louis, y Lawrence Manion. Research Methods in Education. 4th ed. Routledge, 1994.