Capwell, G. K. (1989). SABRE reservations: Basic and advanced training. South-Western Pub.
Citazione stile Chigago Style (17a edizione)Capwell, Gerald K. SABRE Reservations: Basic and Advanced Training. Cincinnati: South-Western Pub, 1989.
Citatione MLA (9a ed.)Capwell, Gerald K. SABRE Reservations: Basic and Advanced Training. South-Western Pub, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.