APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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