Gaya APA
Hartup, Willard W. (1990).
Child Development .
Chicago:
Society For Research In Child Development, Inc.
Gaya Chicago
Hartup, Willard W.
Child Development.
Chicago:
Society For Research In Child Development, Inc,
1990.
Text.
Gaya MLA
Hartup, Willard W.
Child Development.
Chicago:
Society For Research In Child Development, Inc,
1990.
Text.
Gaya Turabian
Hartup, Willard W.
Child Development.
Chicago:
Society For Research In Child Development, Inc,
1990.
Print.