APA

Espy W. R., . (1972). The game of words. New York: Grosset & Dunlap.

Chicago

Espy Willard R, . 1972. The game of words. New York: Grosset & Dunlap.

Harvard

Espy W. R., . (1972). The game of words. New York: Grosset & Dunlap.

MLA

Espy Willard R, . The game of words. New York: Grosset & Dunlap. 1972.