APA aipamena

Hopper, B. (1987). Co-operative learning: An overview. University of Nottingham School of Education.

Chicago Style aipamena

Hopper, Brenda. Co-operative Learning: An Overview. Nottingham: University of Nottingham School of Education, 1987.

MLA aipamena

Hopper, Brenda. Co-operative Learning: An Overview. University of Nottingham School of Education, 1987.