TY  - BOOK
AU  - Mediratta Bhim Sain
AU  - University of Delhi. Faculty of Education. Department of Education
ED  - University of Delhi. Faculty of Education. Department of Education
TI  - Construction of a test of understanding of geometric principles concepts and their application for XI Class (Group B) of Delhi State
PY  - 1964///
KW  - EDUCATION
ER  -