Penggayaan APA

BUTZER, Karl W.. (1976). Geomorphology from the earth . New York: Harper Row Publishers.

Chicago Style

BUTZER, Karl W.. Geomorphology from the earth. New York: Harper Row Publishers, 1976. Buku.

MLA Style

BUTZER, Karl W.. Geomorphology from the earth. New York: Harper Row Publishers, 1976. Buku.

Turabian Style

BUTZER, Karl W.. Geomorphology from the earth. New York: Harper Row Publishers, 1976. Buku.