Welch , Paul S. <br/><br/>
Limnological Methods 
/ by Paul S. Welch 
 - New York:   Mc Grawhill,   1948. 
 - xviii, 381p. 
<br/><br/><label>ISBN: </label>070691754 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Method<br/>Chemical Method<br/>Earth Science<br/>Hydrographic Mapping
<br/><br/><label>Dewey Class. No.: </label>551.48  / WEL/L