Penecilla, Gerard L. <br/><br/>Basic concepts in biology Gerard L. Penecilla, Ligaya D. Valmonte  - Meycauayan, Bulacan:  Trinitas publishing,  2003.  - 291 pages;  25 cm. <br/><br/><label>ISBN: </label>9714203341 <br/><br/><label>Subjects--Topical Terms: </label><br/>1.Biology. I.Valmonte, Ligaya D. II.Title<br/><br/><label>LC Class. No.: </label>QH 308.2  / P411