Gaya APA
Berrill, N.J.. (1976).
Development .
New York:
McGraw-Hill.
Gaya Chicago
Berrill, N.J..
Development.
New York:
McGraw-Hill,
1976.
Text.
Gaya MLA
Berrill, N.J..
Development.
New York:
McGraw-Hill,
1976.
Text.
Gaya Turabian
Berrill, N.J..
Development.
New York:
McGraw-Hill,
1976.
Print.