APA (7. basım) Alıntı

Howitt, D., & Cramer, D. (2017). Research methods in psychology (Fifth edition.). Pearson.

Chicago Style (17. basım) Atıf

Howitt, Dennis, ve Duncan Cramer. Research Methods in Psychology. Fifth edition. Harlow, England ; New York: Pearson, 2017.

MLA (9th ed.) Atıf

Howitt, Dennis, ve Duncan Cramer. Research Methods in Psychology. Fifth edition. Pearson, 2017.