Gaya APA
PAPALIA, D, E., FELDMAN, R, D.
(2011).
A Child's world :
(
12th ed.)
.
Boston:
McGraw-Hill.
Gaya MLA
PAPALIA, Diane, E.., FELDMAN, Ruth, Duskin.
"A Child's world :".
12th ed.
Boston:
McGraw-Hill,
2011.
Buku.