TY  - BOOK
AU  - Sekhon, Sukhmander Singh
TI  - Studies on the nidification, behaviour and damage by the sparrows and parrots in the Punjab
U1  - T 632.6 S27S 
PY  - 1966///
CY  - Ludhiana
PB  - PAU
KW  - BIRDS -- INJURIOUS AND BENEFICIAL
KW  - BIRD PESTS
ER  -