Gaya APA
Grolier Universal Encyclopedia Volume 15 (P). (1970).
New York:
Grolier Incorporated.
Gaya Chicago
Grolier Universal Encyclopedia Volume 15 (P).
Volume 15 (P), 1970.
New York:
Grolier Incorporated,
1970.
Text.
Gaya MLA
Grolier Universal Encyclopedia Volume 15 (P).
Volume 15 (P), 1970.
New York:
Grolier Incorporated,
1970.
Text.
Gaya Turabian
Grolier Universal Encyclopedia Volume 15 (P).
New York:
Grolier Incorporated,
1970.
Print.