Tyarks, F. E. (1978). Travel routes around the world: The traveller's directory to passenger-carrying freighters world liners. Harian Pub.
Chicago-Zitierstil (17. Ausg.)Tyarks, Frederic E. Travel Routes Around the World: The Traveller's Directory to Passenger-carrying Freighters World Liners. New York: Harian Pub, 1978.
MLA-Zitierstil (9. Ausg.)Tyarks, Frederic E. Travel Routes Around the World: The Traveller's Directory to Passenger-carrying Freighters World Liners. Harian Pub, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.