TY  - BOOK
AU  - Singh, Y. K.
TI  - Primary and secondary education
SN  - 978-81-313-0760-1
U1  - 373.54 23rd.
PY  - 2015///
CY  - New Delhi 
PB  - A P H Publishing 
KW  - Education, Elementary
KW  - Education, Secondary
ER  -