APA (7th ed.) Citation

Drucker. (1985). Innovation and entreppreneurship: Practice and principles. Butterworth/Heinemann.

Chicago Style (17th ed.) Citation

Drucker. Innovation and Entreppreneurship: Practice and Principles. Oxford: Butterworth/Heinemann, 1985.

MLA (9th ed.) Citation

Drucker. Innovation and Entreppreneurship: Practice and Principles. Butterworth/Heinemann, 1985.

Warning: These citations may not always be 100% accurate.