TY - BOOK AU - Dwight,Leslie A. TI - Modern mathematics for the elementary teacher AV - QA135.5 .D9 U1 - 510.02437 PY - 1966///] CY - New York PB - Holt, Rinehart and Winston KW - Mathematics KW - Study and teaching (Elementary) KW - Local N1 - Includes bibliographies ER -