Johns, Robert J. <br/><br/>
The ferns and fern allies of Papua New Guinea / 
by R.J. Johns ; ill. by A. Bellamy. 
 - Lae :  Papua New Guinea University of Technology,  1979- 
 - v. 1-2. 
 - Research report ;  R48-81 .
 - Research and technical report (Papua New Guinea University of Technology) ;  R48/81 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns--Papua New Guinea.