Gualdo, Rosendo S. <br/><br/>Logic :  the basics of correct reasoning / Rosendo S. Gualdo.  - Valenzuela City :  Mutya Pub. House,  c2000.  - 156 pages. <br/><br/> Printed by Mega-Jesta Prints. <br/><br/><label>ISBN: </label>9718210040 <br/><br/><label>Subjects--Topical Terms: </label><br/>Reasoning--Textbooks.<br/><br/><label>LC Class. No.: </label>BC 177  / G83 2000