Cita APA (7th ed.)

Day Joh A. (1971). Dimension of the environmental crisis. John Wiley.

Cita Chicago (17th ed.)

Day Joh A. Dimension of the Environmental Crisis. New York: John Wiley, 1971.

Cita MLA (9th ed.)

Day Joh A. Dimension of the Environmental Crisis. John Wiley, 1971.