TY  - BOOK
AU  - Lean, Glendon A.
TI  - Counting systems of Papua New Guinea, volume 11: Gulf Province 
PY  - 1986///
CY  - Lae
PB  - PNG University of Technology
KW  - Numeration, Papua New Guinea
KW  - Numeration, Gulf Province
N1  - Includes: Bibliography and appendices
ER  -