TY - BOOK ED - International Congress on Mathematical Education (4th : 1980 : Berkeley, Calif.). ED - Zweng, Marilyn, 1932- TI - Proceedings of the Fourth International Congress on Mathematical Education PY - 1983/// CY - Boston, MA. PB - Birkhauser KW - Mathematics KW - Study and teaching KW - Congresses N1 - English, French, and Spanish; 'The Fourth International Congress on Mathematics Education was held in Berkeley, California, USA, August 10-16, 1980'--Introd; Includes bibliographies and index ER -