APA (7. basım) Alıntı

Eckhardt, K. W., & Ermann,M.David. (1977). Social research methods: Perspective theory and analysis. Randon.

Chicago Style (17. basım) Atıf

Eckhardt, Kenneth W., ve Ermann,M.David. Social Research Methods: Perspective Theory and Analysis. New York: Randon, 1977.

MLA (9th ed.) Atıf

Eckhardt, Kenneth W., ve Ermann,M.David. Social Research Methods: Perspective Theory and Analysis. Randon, 1977.