Cita APA (7a ed.)

Harrison, B., & Mason, J. (1971). Enciclopedia of Discovery and Exploration. Aldus Book London.

Cita Chicago Style (17a ed.)

Harrison, Beppie, y John Mason. Enciclopedia of Discovery and Exploration. London: Aldus Book London, 1971.

Cita MLA (8a ed.)

Harrison, Beppie, y John Mason. Enciclopedia of Discovery and Exploration. Aldus Book London, 1971.