APA (7th ed.) Citation

Butler, C. H., & Wren, F. L. (1960). The teaching of secondary mathematics (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Butler, Charles Henry, and F. Lynwood Wren. The Teaching of Secondary Mathematics. 3rd ed. New York: McGraw-Hill, 1960.

MLA (8th ed.) Citation

Butler, Charles Henry, and F. Lynwood Wren. The Teaching of Secondary Mathematics. 3rd ed. McGraw-Hill, 1960.