(1968). Swimming and water safety textbook. American Nat. red cross s.
Chicagoスタイル(17版)引用形式Swimming and Water Safety Textbook. Washington: American Nat. red cross s, 1968.
MLA(9版)引用形式Swimming and Water Safety Textbook. American Nat. red cross s, 1968.
警告: この引用は必ずしも正確ではありません.