Cita APA (7a ed.)
Eckhardt, K. W., & Erman, M. D. (1977). Social research methods: Perspective, theory and analysis. Random House.
Cita Chicago Style (17a ed.)
Eckhardt, Kenneth W., y M. David Erman. Social Research Methods: Perspective, Theory and Analysis. New York: Random House, 1977.
Cita MLA (9a ed.)
Eckhardt, Kenneth W., y M. David Erman. Social Research Methods: Perspective, Theory and Analysis. Random House, 1977.
Precaución: Estas citas no son 100% exactas.