Gaya APA
Sills, D, L. (1972).
International Encyclopedia of the Social Sciences Volumes 7 and 8 : Complete and Unabridged .
New York:
The Macmillan Company & The Free Press.
Gaya MLA
Sills, David, L..
"International Encyclopedia of the Social Sciences Volumes 7 and 8 : Complete and Unabridged".
New York:
The Macmillan Company & The Free Press,
1972.
Text.