APA

Freebury H. A., . (1961). A history of mathematics. New York: Macmillan.

Chicago

Freebury H A, . 1961. A history of mathematics. New York: Macmillan.

Harvard

Freebury H. A., . (1961). A history of mathematics. New York: Macmillan.

MLA

Freebury H A, . A history of mathematics. New York: Macmillan. 1961.