Cita APA (7a ed.)

Johnson, C. E. (1972). The natural world: Chaos and conservation. McGraw-Hill.

Cita Chicago Style (17a ed.)

Johnson, Cecil E. The Natural World: Chaos and Conservation. New York: McGraw-Hill, 1972.

Cita MLA (8a ed.)

Johnson, Cecil E. The Natural World: Chaos and Conservation. McGraw-Hill, 1972.