APA (7th ed.) Zitazioa

(1968). Swimming and water safety textbook. American Nat. red cross s.

Chicago Style (17th ed.) Zitazioa

Swimming and Water Safety Textbook. Washington: American Nat. red cross s, 1968.

MLA (9th ed.) Zitazioa

Swimming and Water Safety Textbook. American Nat. red cross s, 1968.