Laboratory manual in polygraphy / 
Chavez, Carmelita B.;  Nabe, Nestor C. 
 - Quezon City :  Wiseman's Books Trading, Inc.,  2016. 
 - ii, 39 p.;  27.8cm. 
<br/><br/><label>ISBN: </label>9789719617785 
<br/><br/><label>Dewey Class. No.: </label>Fil 364. 254 C398 2016