Gaya APA
Collier's Encyclopedia. (1959).
USA:
Crowell-Collier Publishing Company.
Gaya Chicago
Collier's Encyclopedia.
.
USA:
Crowell-Collier Publishing Company,
1959.
Text.
Gaya MLA
Collier's Encyclopedia.
.
USA:
Crowell-Collier Publishing Company,
1959.
Text.
Gaya Turabian
Collier's Encyclopedia.
USA:
Crowell-Collier Publishing Company,
1959.
Print.