APA (7th ed.) Citation

Hardy, D., & Shaw, B. (1981). Galactic tours: Thomas Cook out of this world vacations. Proteus Books.

Chicago Style (17th ed.) Citation

Hardy, David, and Bob Shaw. Galactic Tours: Thomas Cook Out of This World Vacations. New York: Proteus Books, 1981.

MLA (9th ed.) Citation

Hardy, David, and Bob Shaw. Galactic Tours: Thomas Cook Out of This World Vacations. Proteus Books, 1981.