Style de citation APA (7e éd.)

Thoman, R. S. (1964). Focus on geographic activity: A collection of original studies/ by. McGraw-Hill.

Style de citation Chicago (17e éd.)

Thoman, Richard S. Focus on Geographic Activity: A Collection of Original Studies/ by. New York: McGraw-Hill, 1964.

Style de citation MLA (9e éd.)

Thoman, Richard S. Focus on Geographic Activity: A Collection of Original Studies/ by. McGraw-Hill, 1964.