Παραπομπή σε μορφή APA (7η εκδ.)

Cassell, Allen, R., & Messenger, S. (1994). Management skills: хa иresource-based approach for the hospitality and tourism industries. Cassell.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cassell, Robert Allen, και Sally Messenger. Management Skills: хa иresource-based Approach for the Hospitality and Tourism Industries. London: Cassell, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cassell, et al. Management Skills: хa иresource-based Approach for the Hospitality and Tourism Industries. Cassell, 1994.