APA (7th ed.) Citation

Armstrong, J. W. (1968). Mathematics for elementary school teachers. Harper r Row Publ.

Chicago Style (17th ed.) Citation

Armstrong, James W. Mathematics for Elementary School Teachers. Harper r Row Publ, 1968.

MLA (8th ed.) Citation

Armstrong, James W. Mathematics for Elementary School Teachers. Harper r Row Publ, 1968.

Warning: These citations may not always be 100% accurate.