Cameron, Nell <br/><br/>
Biological nitrogen fixation  [videorecording] / 
produced by Nell Cameron 
 - England :  The Open University Enterprises LTD,  [n.d.] 
 - 1 videocassette (VHS) (24 min.) :  sd., col., ;  1/2 in. 
<br/><br/> Copy available in DVD format 
<br/><br/>Editor, Rill Stillman  Editor, Rill Stillman 
<br/><br/>Speakers: Colin Walker, Andy John Ston 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen--Fixation