APA

Research and Education Association, Fogiel M., . (1977). The geometry problem solver. New York: REA.

Chicago

Research and Education Association, Fogiel M, . 1977. The geometry problem solver. New York: REA.

Harvard

Research and Education Association, Fogiel M., . (1977). The geometry problem solver. New York: REA.

MLA

Research and Education Association, Fogiel M, . The geometry problem solver. New York: REA. 1977.