El alfy, youssef 2. Fluid mechanics [[Book] /] Youssef el alfy. - 46th.ed. - Cairo : Author, [2020]. - 115 p : ill ; 25 cm. - Water & Environmental engineering series (WEES) . All age. ISBN: 9789779079608 Subjects--Topical Terms: Fluid mechanics. Dewey Class. No.: 620.106 / E F National Library of Medicine Call No.: 620.106 / E F