TY  - BOOK
AU  - Maheshwari, P., ed.
AU  - Lal, Manorhar, ed.
TI  - Biology : a textbook for higher secondary schools : section 4 : plant and animal life and section 5 : self - preservation or reproduction
PY  - 1966///
CY  - New Delhi
PB  - National Council of Educational Research and Training
ER  -