Gaya APA
Russia: Insight Guides. (1994).
Boston:
Houghton Mifflin Company.
Gaya Chicago
Russia: Insight Guides.
.
Boston:
Houghton Mifflin Company,
1994.
Buku.
Gaya MLA
Russia: Insight Guides.
.
Boston:
Houghton Mifflin Company,
1994.
Buku.
Gaya Turabian
Russia: Insight Guides.
Boston:
Houghton Mifflin Company,
1994.
Buku.