APA

Butler C. H., Wren F. L. & Banks J. H. (1970). The teaching of secondary mathematics. New York: McGraw-Hill.

Chicago

Butler Charles Henry, Wren Frank Lynwood and Banks John Houston. 1970. The teaching of secondary mathematics. New York: McGraw-Hill.

Harvard

Butler C. H., Wren F. L. and Banks J. H. (1970). The teaching of secondary mathematics. New York: McGraw-Hill.

MLA

Butler Charles Henry, Wren Frank Lynwood and Banks John Houston. The teaching of secondary mathematics. New York: McGraw-Hill. 1970.