Gaya APA
Sills, David L.. (1968).
International encyclopedia of the social sciences .
New York:
New York: The Macmillan Company.
Gaya Chicago
Sills, David L..
International encyclopedia of the social sciences.
New York:
New York: The Macmillan Company,
1968.
Text.
Gaya MLA
Sills, David L..
International encyclopedia of the social sciences.
New York:
New York: The Macmillan Company,
1968.
Text.
Gaya Turabian
Sills, David L..
International encyclopedia of the social sciences.
New York:
New York: The Macmillan Company,
1968.
Print.