APA استشهاد

Zechmeister, J. S. a. (2009). Essentials of research methods in psychology. Tata McGraw-Hill.

استشهاد بنمط شيكاغو

Zechmeister, Jeanne S.et al. Essentials of Research Methods in Psychology. New Delhi: Tata McGraw-Hill, 2009.

MLA استشهاد

Zechmeister, Jeanne S.et al. Essentials of Research Methods in Psychology. Tata McGraw-Hill, 2009.