Newman, R. G. (1987). Communicating in business today. D.C heath.
Chicagoスタイル(17版)引用形式Newman, Ruth G. Communicating in Business Today. Lexington: D.C heath, 1987.
MLA(9版)引用形式Newman, Ruth G. Communicating in Business Today. D.C heath, 1987.
警告: この引用は必ずしも正確ではありません.