A Manual on methods for Measuring Primary production in Aqutic Envioronments: IBP Hand Book -12  

 - 2nd ed. 
 - London,  Blackwell Scientific Publications,  1969, 
 - xiv, 225p.  24cm. 
<br/><br/><label>ISBN: </label>0632005319 
<br/><br/><label>Subjects--Personal Names: </label><br/>Primary Production<br/>Aquatic Envioronments
<br/><br/><label>Dewey Class. No.: </label>574.5  / MAN