Παραπομπή APA

Leon, A. (1999). Enterprise resource planning. Tata McGraw HIll.

Παραπομπή Chicago Style

Leon, Alexis. Enterprise Resource Planning. New Delhi: Tata McGraw HIll, 1999.

Παραπομπή MLA

Leon, Alexis. Enterprise Resource Planning. Tata McGraw HIll, 1999.