TY  - BOOK
AU  - Hukum Chand,
AU  - Chandra,Vidya
AU  - Dass,Bhagwan
TI  - Intermediate trigonometry
U1  - 152 
PY  - 1956///
CY  - Delhi [India]
PB  - Universal Pub
KW  - Ibn Khallikans
KW  - Biographical
KW  - Dictionaries
ER  -