Παραπομπή APA

Foster, D. L. (1995). First Class: An Introduction to Travel and Tourism. Singapore: Glencoe.

Παραπομπή Chicago Style

Foster, Dennis L. First Class: An Introduction to Travel and Tourism. Singapore: Glencoe, 1995.

Παραπομπή MLA

Foster, Dennis L. First Class: An Introduction to Travel and Tourism. Singapore: Glencoe, 1995.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.