Gaya APA
International Encyclopedia of the Social Sciences: volume 1, 2. (1972).
America:
Crowell collier and macmillan.
Gaya Chicago
International Encyclopedia of the Social Sciences: volume 1, 2.
.
America:
Crowell collier and macmillan,
1972.
Text.
Gaya MLA
International Encyclopedia of the Social Sciences: volume 1, 2.
.
America:
Crowell collier and macmillan,
1972.
Text.
Gaya Turabian
International Encyclopedia of the Social Sciences: volume 1, 2.
America:
Crowell collier and macmillan,
1972.
Print.