APA (7th ed.) Citation

Zvoncheck, J. (1988). Cruises: Selecting, selling, and booking. National Pub.

Chicago Style (17th ed.) Citation

Zvoncheck, Juls. Cruises: Selecting, Selling, and Booking. Elmsford, N. Y: National Pub, 1988.

MLA (9th ed.) Citation

Zvoncheck, Juls. Cruises: Selecting, Selling, and Booking. National Pub, 1988.