Cronberg, Gertrud Plankton of the Negril and Black River morasses, Jamaica by Gertrud Cronberg - Kingston Petroleum Corporation of Jamaica 1983 - 129 pages 30 cm - Title . Appendix 3 to Environmental feasibility study of peat mining in Jamaica Subjects--Topical Terms: Peatland ecology--JamaicaPeatlands--JamaicaNegril morass Subjects--Geographic Terms: Black River morass Dewey Class. No.: 333.7845 / Ja Cro