Gaya APA

Hettich, P, I., Landrum, R, E. (2014). Your Undergraduate Degree in Psychology: From College to Career . USA: Sage Publications.

Gaya MLA

Hettich, Paul, I.., Landrum, R., Eric. "Your Undergraduate Degree in Psychology: From College to Career". USA: Sage Publications, 2014. Koleksi Elektronik.