Caldero Sánchez, David. <br/><br/>
Automotive spent oil reclamation and recycling in Puerto Rico 
by David Caldero Sánchez. 
 -  1985. 
 - ix, [61] leaves  ill. 
<br/><br/>Thesis (M.B.A)--Catholic University of Puerto Rico. 
<br/><br/>Bibliography : leave [61] 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Pontificia Universidad Católica de Puerto Rico. --Dissertations.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum waste--Recycling.
<br/><br/><label>LC Class. No.: </label>HD4013