Cita APA (7a ed.)

Greenberg, J., & Folger, R. G. (1988). Controversial issues in social research methods. Springer-Verlag.

Cita Chicago Style (17a ed.)

Greenberg, Jerald, y Robert G. Folger. Controversial Issues in Social Research Methods. New York [etc.]: Springer-Verlag, 1988.

Cita MLA (9a ed.)

Greenberg, Jerald, y Robert G. Folger. Controversial Issues in Social Research Methods. Springer-Verlag, 1988.