Annual handbook.
- Lae : The Institute, 1990-1991.
- v. : ill. ; 28 cm.
1989 and 1990 issues.
Papua New Guinea University of Technology. Appropriate Technology Development Institute.
Appropriate technology--Handbooks, manuals, etc.--Papua New Guinea
1989 and 1990 issues.
Papua New Guinea University of Technology. Appropriate Technology Development Institute.
Appropriate technology--Handbooks, manuals, etc.--Papua New Guinea