Vélez, Manuel José <br/><br/>
The taxonomy, distribution, and certain ecological aspects of the Diplopoda of Puerto Rico 
Manuel José Vélez. 
 - Ann Arbor, Mich.  The University of Michigan  1965, 
 - xviii, 427 p.  ill. 
<br/><br/>Thesis (PhD.). --The University of Michigan, 1965. 
<br/><br/>Bibliography : p. 289-295. 
<br/><br/><br/>Typescript (photocopy). Ann Arbor, Mich., University Microfilm International. 
<br/><br/><label>LCCN: </label>aa 28000277  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diplopoda.<br/>Myriapoda--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico