Dyfyniad APA

Drucker,Peter F. (1985). Innovation and entrepreneurship: Practice and principles. Heinemann.

Dyfyniad Arddull Chicago

Drucker,Peter F. Innovation and Entrepreneurship: Practice and Principles. London: Heinemann, 1985.

Dyfyniad MLA

Drucker,Peter F. Innovation and Entrepreneurship: Practice and Principles. Heinemann, 1985.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.