Penecilla, G. L. (2003). Basic concepts in biology. Trinitas Pub.
Chicago Style (17th ed.) CitationPenecilla, Gerard L. Basic Concepts in Biology. Bulacan: Trinitas Pub, 2003.
MLA (9th ed.) CitationPenecilla, Gerard L. Basic Concepts in Biology. Trinitas Pub, 2003.
Warning: These citations may not always be 100% accurate.