APA(7版)引用形式
Willingham, R. L. (1968). How to speak so people will listen. Word books.
Chicagoスタイル(17版)引用形式
Willingham, Ronald L. How to Speak so People Will Listen. Word: Word books, 1968.
MLA(9版)引用形式
Willingham, Ronald L. How to Speak so People Will Listen. Word books, 1968.
警告: この引用は必ずしも正確ではありません.