Gaya APA

Physical geology. (2016). New York: McGraw-Hill Education.

Gaya Chicago

Physical geology. 15. New York: McGraw-Hill Education, 2016. Buku.

Gaya MLA

Physical geology. 15. New York: McGraw-Hill Education, 2016. Buku.

Gaya Turabian

Physical geology. New York: McGraw-Hill Education, 2016. Buku.