Gaya APA
Ryckman, Richard M.. (2013).
Theories of personality (10th ed.).
America:
Wadsworth Cengage Learning.
Gaya Chicago
Ryckman, Richard M..
Theories of personality.
10th ed.
America:
Wadsworth Cengage Learning,
2013.
Text.
Gaya MLA
Ryckman, Richard M..
Theories of personality.
10th ed.
America:
Wadsworth Cengage Learning,
2013.
Text.
Gaya Turabian
Ryckman, Richard M..
Theories of personality.
10th ed.
America:
Wadsworth Cengage Learning,
2013.
Print.