Villalas, Beteliano S. E-mat 111 engineering materials : for college of marine engineering / Beteliano S. Villalas, Eugene S. Ylaya, and Calvin Y. Parba. - Philippines : Wiseman's Books Trading, Inc. , 2019 - iv, 198 pages : illustrations ; 25 cm. Includes bibliography. ISBN: 9786214180752 Subjects--Topical Terms: Engineering Materials. Dewey Class. No.: 623.8 / V714e