TY  - BOOK
AU  - Lean,Glendon A.
ED  - Papua New Guinea University of Technology. Department of Mathematics.
TI  - Counting systems of Papua New Guinea, volume 17: bibliography 
PY  - 1987///
CY  - Lae
PB  - PNG University of Technology
KW  - Numeration, Papua New Guinea
KW  - Bibliography
ER  -