Johnstone, I. M. <br/><br/>
The sea-grasses of the Port Moresby region :  an introductory guide to their taxonomy, ecology and distribution / 
by I. M. Johnstone. 
 - [Port Moresby] :  University of Papua New Guinea, Dept. of Biology,  1975. 
 - 38p. :  ill. 
 - Occasional papers ;  no. 7. .
 - Occasional papers (University of Papua New Guinea. Dept. of Biology) ;  no. 7. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seagrasses--Papua New Guinea--Port Moresby Region.