Tohutoro APA (7th ed.)
Drucker, P. F. (1985). Innovation and entrepreneurship: Practice and principles. Harper & Row.
Tohutoru Kātū Chicago (17th ed.)
Drucker, Peter Ferdinand. Innovation and Entrepreneurship: Practice and Principles. New York: Harper & Row, 1985.
Tohutoro MLA (9th ed.)
Drucker, Peter Ferdinand. Innovation and Entrepreneurship: Practice and Principles. Harper & Row, 1985.
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