Cita APA (7a ed.)

Drucker, P. F. (1991). Innovation and entrepreneurship: Practice and principles. Affiliated East-West Press PVT Ltd..

Cita Chicago Style (17a ed.)

Drucker, P. F. Innovation and Entrepreneurship: Practice and Principles. New Delhi: Affiliated East-West Press PVT Ltd., 1991.

Cita MLA (9a ed.)

Drucker, P. F. Innovation and Entrepreneurship: Practice and Principles. Affiliated East-West Press PVT Ltd., 1991.