Lledó Ruiz, Agustín. <br/><br/>
Causes of absenteeism at a petrochemical company in Guayanilla 
Agustín Lledó Ruiz. 
 -  1977. 
 - [48] l.  charts, tables. 
<br/><br/>Thesis (M.B.A)-Catholic University of Puerto Rico. 
<br/><br/>Bibliography : p. l. [48] 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Pontificia Universidad Católica de Puerto Rico. --Dissertations.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Absenteeism Labor
<br/><br/><label>LC Class. No.: </label>HD4013