Gaya APA

Geology & Geohraphy. (2007). : Hinkler Books.

Gaya Chicago

Geology & Geohraphy. . : Hinkler Books, 2007. Text.

Gaya MLA

Geology & Geohraphy. . : Hinkler Books, 2007. Text.

Gaya Turabian

Geology & Geohraphy. : Hinkler Books, 2007. Print.