Gaya APA
Berk, L, E.
(2010).
Development Through the Lifespan 5'th Ed.
(
5)
.
Boston:
Allyn and Bacon.
Gaya MLA
Berk, Laura, E..
"Development Through the Lifespan 5'th Ed.".
5
Boston:
Allyn and Bacon,
2010.
Text.