APA (7th ed.) Zitazioa

Ley, W. (1969). Gas giants: The largest planets. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Ley, Willy. Gas Giants: The Largest Planets. New York: McGraw-Hill, 1969.

MLA (9th ed.) Zitazioa

Ley, Willy. Gas Giants: The Largest Planets. McGraw-Hill, 1969.