Deismireacht APA

Drucker, P. F. (1967). The effective executive. New York: Harper and Row.

Trích dẫn kiểu Chicago

Drucker, Peter F. The Effective Executive. New York: Harper and Row, 1967.

Deismireacht MLA

Drucker, Peter F. The Effective Executive. New York: Harper and Row, 1967.

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