TY  - BOOK
AU  - Macomber,Freman Clenn, -
AU  - x
TI  - Principles of teaching in the elementary school: x
SN  - x 
U1  - 371.3/MAP 
PY  - 1967///
CY  - Eurasia
PB  - N. Delhi
KW  - Teaching
KW  - Education, Elementary
ER  -