Johnstone, I. M. <br/><br/>
Survey methods for the analysis of seagrass meadows with respect to their potential as dugong and turtle habitat, with a field key to the seagrasses of Papua New Guinea / 
by I. M. Johnstone. 
 - [Port Moresby] :  University of Papua New Guinea, Dept. of Biology,  1979. 
 - 42p. :  ill. 
 - Occassional paper ;  no. 8. .
 - Occassional paper (University of Papua New Guinea. Dept. of Biology) ;  no. 8. .
<br/><br/> Cover title : Seagrass survey methods. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seagrasses--Papua New Guinea.