TY  - BOOK
AU  - Sober Elliott
AU  -  Wilson David Sloan
TI  - Unto others :  Evolution and psychology of unselfish  behavior
SN  - 0674930479 (pbk)
U1  - R4,15, N8 
PY  - 1998///
CY  - Cambridge
PB  - Harvard University Press India    
KW  - PHILOSOPHY
ER  -