Wheatley, E. W. (1983). Marketing professional services. Prentice-Hall Inc.
Chicagoスタイル(17版)引用形式Wheatley, Edward W. Marketing Professional Services. Englewood Cliffs, New Jersey: Prentice-Hall Inc, 1983.
MLA(9版)引用形式Wheatley, Edward W. Marketing Professional Services. Prentice-Hall Inc, 1983.
警告: この引用は必ずしも正確ではありません.