APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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