APA (7th ed.) Citation

Berthon, S., Robinson, A., & Stewart, P. (1991). The shape of the world: [the mapping and discovery of the earth. Rand McNally.

Chicago Style (17th ed.) Citation

Berthon, Simon, Andrew Robinson, and Patrick Stewart. The Shape of the World: [the Mapping and Discovery of the Earth. Chicago: Rand McNally, 1991.

MLA (9th ed.) Citation

Berthon, Simon, et al. The Shape of the World: [the Mapping and Discovery of the Earth. Rand McNally, 1991.