Prasada, D. V. P. Ecology, economics and management of sea - cucumber fishery in sri lanka - D V P Prasada and D C T Dissanayake 2020 - 92p. 21cm ISBN: 9786249613324 Subjects--Topical Terms: EcologyEconomicsManagementSea Cucumber Fishery Dewey Class. No.: 594 / PRA