Mangalika, H.D. Cristoper, H.D. Sri Lankawe miridiya visithuru mathsayanta weladena roga ha prathikara kirema - Kelaniya Microbtec Laboratories 2005 - 125 pages ISBN: 9551352009 Subjects--Topical Terms: Fishes-Sri LankaFishes diseases- Prevention Dewey Class. No.: 597.095493 / MAN