Engler, B. (1985). Personality Theories: An introduction (2nd ed.). Houghton Mifflin Company.
Chicago-čujuhus (17. p.)Engler, Barbara. Personality Theories: An Introduction. 2nd ed. Boston: Houghton Mifflin Company, 1985.
MLA-čujuhus (9. p.)Engler, Barbara. Personality Theories: An Introduction. 2nd ed. Houghton Mifflin Company, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.