Gualdo, Rosendo S. <br/><br/>Logic  the basic of correct reasoning Rosendo S. Gualdo  - Valenzuela City:  Mutya Publishing,  2000.  - 156 pages;  25 cm. <br/><br/><label>Subjects--Topical Terms: </label><br/>1.Logic. I.Title<br/><br/><label>LC Class. No.: </label>BC 39.5  / G911