Elementary school mathematics : a guide to current research /
Leroy G. Callahan, Vincent J. Glennon.
- forth edition.
- Washington : Association for Supervision and Curriculum Development, (c)1975.
- xi, 188 pages : graphs ; 23 cm.
Previous editions by V. J. Glennon and L. G. Callahan. Published in 1952 and 1958 under title: What does research say about arithmetic?