Glennon, V. J., & Callahan, L. G. Elementary school mathematics: A guide to current research (3rd ed.).
Chicago Style (17th ed.) CitationGlennon, Vincent J., and L. G. Callahan. Elementary School Mathematics: A Guide to Current Research. 3rd ed. Washington, D.C. Association fo Supervision and Curriculum Development, c1968.
MLA (9th ed.) CitationGlennon, Vincent J., and L. G. Callahan. Elementary School Mathematics: A Guide to Current Research. 3rd ed.
Warning: These citations may not always be 100% accurate.