APA (7th ed.) Zitazioa
Schikel, R. The world of tennis / by Richard Schickel.
Chicago Style (17th ed.) Zitazioa
Schikel, Richard. The World of Tennis / by Richard Schickel.
MLA (9th ed.) Zitazioa
Schikel, Richard. The World of Tennis / by Richard Schickel.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.