TY  - GEN
AU  - B.D. Yadav; ed
AU  - S.Ram      
AU  -  S. Ganjoo    
TI  - Historical introduction to the world; vol-7 part-4:  earliest times to  the present day 
SN  - 8171582788
U1  - 909 
PY  - 1992///
CY  - New Delhi
PB  - Akashdeep Publishing House
ER  -