APA-čujuhus (7. p.)
Ryckman, R. M. (1989). Theories of personality (3rd ed.). Brooks/Cole Publishing Company.
Chicago-čujuhus (17. p.)
Ryckman, Richard M. Theories of Personality. 3rd ed. California: Brooks/Cole Publishing Company, 1989.
MLA-čujuhus (9. p.)
Ryckman, Richard M. Theories of Personality. 3rd ed. Brooks/Cole Publishing Company, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.