Holt,David. (1998). Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd.
Cita Chicago (17th ed.)Holt,David. Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd, 1998.
Cita MLA (9th ed.)Holt,David. Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.