Fertiliser association of India. Pal,Bhisham Teotia,United States of America Tewatia,R.K <br/><br/>
Fertiliser and allied agricultural statistics 1997 -98  Northern region / R.K.Tewatia, Bhisham Pal and U.S.Teotia 

 - New Delhi  Fertiliser association of India  1998 
 - 99p.