Style de citation APA (7e éd.)

Milligan, G. C. (1977). The Changing earth: An introduction to geology. McGraw-Hill Ryerson.

Style de citation Chicago (17e éd.)

Milligan, George C. The Changing Earth: An Introduction to Geology. Toronto: McGraw-Hill Ryerson, 1977.

Style de citation MLA (9e éd.)

Milligan, George C. The Changing Earth: An Introduction to Geology. McGraw-Hill Ryerson, 1977.