Nitrogen fixation / 
edited by William E. Newton and William H. Orme-Johnson. 
 - Baltimore :  University Park Press,  c1980- 
<br/><br/>Includes bibliographies and index. 
<br/><br/>v. 1. Free-living systems and chemical models. 
<br/><br/><label>ISBN: </label>0839115601 (v. 1) 083911561X (v. 2) 
<br/><br/><label>LCCN: </label>79028285 //r894 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen-fixing microorganisms -- Congresses.--Nitrogen-fixing microorganisms -- Congresses.<br/>Nitrogen -- Fixation -- Congresses.--Nitrogen -- Fixation -- Congresses.--Nitrogen -- Fixation -- Congresses.
<br/><br/><label>LC Class. No.: </label>QR89.7  / .K47 1978 
<br/><br/><label>Dewey Class. No.: </label>589