Riser, Nathan W, Ed., et al. <br/><br/>
Biology of the turbellaria 

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 - McGraw-Hill Book Co. Inc., New York  1974 
 - 524 
 - .
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Turbelleria - biology
<br/><br/><label>Dewey Class. No.: </label>592.42  RIS-B