TY  - BOOK
AU  - Khanna,J.K..
AU  - Vasisth,K.K..
TI  - Knowledge : evolution, structure and research methodology / 
SN  - 817000005X
U1  - 001 
PY  - 1985///
CY  - New Delhi : 
PB  - Ess Ess Publications , 
KW  - KNOWLEDGE
N1  - NULL
ER  -