Carl Koch. (1982). Communication skills for college students. National Book Store.
Chicagoスタイル(17版)引用形式Carl Koch. Communication Skills for College Students. Manila: National Book Store, 1982.
MLA(9版)引用形式Carl Koch. Communication Skills for College Students. National Book Store, 1982.
警告: この引用は必ずしも正確ではありません.