TY  - BOOK
TI  - Inservice education of high school mathematics teachers: Report of a conference under the joint auspices of the U.S. department of health, education, and welfare and the national council of teachers of mathematics Washington, March 17-19, 1960
PY  - 1961///
CY  - Washington, USA
PB  - U.S. Government Printing Office 
ER  -