APA

(1990). The Marshall Cavendish illustrated encyclopedia of discovery and exploration. New York: M. Cavendish.

Chicago

1990. The Marshall Cavendish illustrated encyclopedia of discovery and exploration. New York: M. Cavendish.

Harvard

(1990). The Marshall Cavendish illustrated encyclopedia of discovery and exploration. New York: M. Cavendish.

MLA

The Marshall Cavendish illustrated encyclopedia of discovery and exploration. New York: M. Cavendish. 1990.