Liaison. 
 Liaison :  boletín informativo del CRCI 

 - Río Piedras, P. R.  Colegio Ciencias Naturales, UPR  1982- 
 - volumes :  illustrations (black and white) ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Puerto Rico--Periodicals <br/>Engineering--Puerto Rico--Periodicals
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Periodicals.