Lean, Glendon A. <br/><br/>
Counting systems of Papua New Guinea, volume 1 :  New Ireland Province / 
G. A. Lean. 
 - 2nd ed. 
 - Lae :  PNG University of Technology,  1991. 
 - xvi, 40 p. :  ill. 
<br/><br/>Includes bibliographic references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numeration, Melanesian.<br/>Numeration, Papua New Guinean.<br/>Numeration--New Ireland Province.