Gaya APA
OLSON, M, H., , H, [, B. (2011).
An introduction to theories of personality (8th ed.).
Boston:
Prentice Hall.
Gaya MLA
OLSON, Matthew, H.., , HERGENHAHN, [1934-2007],, B.R..
"An introduction to theories of personality".
8th ed.
Boston:
Prentice Hall,
2011.
Buku.