Παραπομπή APA

Zvoncheck, J. (1988). Cruises: Selecting, selling, and booking. Elmsford, NY.: National Publishers.

Παραπομπή Chicago Style

Zvoncheck, Juls. Cruises: Selecting, Selling, and Booking. Elmsford, NY.: National Publishers, 1988.

Παραπομπή MLA

Zvoncheck, Juls. Cruises: Selecting, Selling, and Booking. Elmsford, NY.: National Publishers, 1988.

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