Nitrogen and the environment 
edited by Kausar A. Malik , S. H. Mujtaba Naqvi 
 - Faisalabad:  Nuclear Institute for Agriculture and Biology,  1985. 
 - xii, 437p. 
<br/><br/> HB 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen-Fixation-Congresses
<br/><br/><label>Dewey Class. No.: </label>581.133  / NIT