Παραπομπή σε μορφή APA (7η εκδ.)

Cassell, Ingram, H., Johns, N., & Ross-Lee, D. (1994). Operational techniques for the hospitality industry: хa иresource-based approach for the hospitality industry. Cassell.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cassell, Hadyn Ingram, Nick Johns, και Darren Ross-Lee. Operational Techniques for the Hospitality Industry: хa иresource-based Approach for the Hospitality Industry. London: Cassell, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cassell, et al. Operational Techniques for the Hospitality Industry: хa иresource-based Approach for the Hospitality Industry. Cassell, 1994.