Gaya APA
Grolier, . (1983).
Encyclopedia Americana #7: Civilization to Coroniom .
America:
Grolier International Inc.,.
Gaya MLA
Grolier, .
"Encyclopedia Americana #7: Civilization to Coroniom".
America:
Grolier International Inc.,,
1983.
GEN - Bacaan/Seri Non-Fiksi.