Sneath, Peter H A; Sokal, Robert R <br/><br/>
Numerical taxonomy: The principles and practice of numerical classification 

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 - W H Freeman & Co., San Francisco  1973 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification-- systematics-- taxonomoy
<br/><br/><label>Dewey Class. No.: </label>578.012  SNE-N