Cita APA (7a ed.)

Morton, R. L. (1937). Teaching arithmetic in elementary school. Silver Burdett company.

Cita Chicago Style (17a ed.)

Morton, Robert Lee. Teaching Arithmetic in Elementary School. New York, boston [etc.]: Silver Burdett company, 1937.

Cita MLA (9a ed.)

Morton, Robert Lee. Teaching Arithmetic in Elementary School. Silver Burdett company, 1937.