एपीए उद्धरण

Allison, I. S. (1980). Geology the science of a changing earth. New York: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Allison, Ira Shimmin. Geology the Science of a Changing Earth. New York: McGraw-Hill, 1980.

एमएलए उद्धरण

Allison, Ira Shimmin. Geology the Science of a Changing Earth. New York: McGraw-Hill, 1980.