Cita APA (7th ed.)
HAGELL, A. (2000). SECURE TRAINING CENTERS.
Cita Chicago (17th ed.)
HAGELL, A. SECURE TRAINING CENTERS. 2000.
Cita MLA (9th ed.)
HAGELL, A. SECURE TRAINING CENTERS. 2000.
Atenció: Aquestes cites poden no estar 100% correctes.