APA-Zitierstil (7. Ausg.)

Engle, T. L. (1950). Psychology: Its principles and applications (Rev. ed.). World Book Co.

Chicago-Zitierstil (17. Ausg.)

Engle, Thelburn L. Psychology: Its Principles and Applications. Rev. ed. Yonkers-on Hudson, N.Y: World Book Co, 1950.

MLA-Zitierstil (9. Ausg.)

Engle, Thelburn L. Psychology: Its Principles and Applications. Rev. ed. World Book Co, 1950.