Gaya APA
Incorporated, G. ().
Grolier Encyclopedia of Knowledge Vol. 9 : Gre-Hys (cet. 1).
United States of Ame:
Academic American of Encylopedia.
Gaya MLA
Incorporated, Grolier.
"Grolier Encyclopedia of Knowledge Vol. 9 : Gre-Hys".
cet. 1
United States of Ame:
Academic American of Encylopedia,
.
Text.