Franklin

MLA

Roantree, William F, and Mary S Taylor. An Arithmetic for Teachers. New York: The Macmillan Company, 1927.

APA

Roantree, W. F, & Taylor, M. S. (1927). An arithmetic for teachers. New York: The Macmillan Company.

Chicago

Roantree, William F., and Mary S Taylor. An Arithmetic for Teachers. New York: The Macmillan Company, 1927.