Acta científica / 
Asociación de maestros de ciencia de Puerto Rico 
 - volumes :  illustrations, tables, charts ;  28 cm. 
<br/><br/><label>ISSN: </label>1940-1148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Puerto Rico--Periodicals
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Periodicals.