Coates, David. <br/><br/>
An ulcer-disease outbreak amongst the freshwater fish population of the Sepik River system, with notes on some freshwater fish parasites / 
by David Coates. 
 - Port Moresby :  Fisheries Research & Surveys Branch, Dept. of Primary Industry,  1984. 
 - [21 leaves] :  map. 
 - Report ;  no. 84-02 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fishes--Diseases--Papua New Guinea--Sepik River.<br/>Fishes--Parasites.--Papua New Guinea