Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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

Precaución: Estas citas no son 100% exactas.