Lean, G. A. (1992). Counting systems of Papua New Guinea and Oceania. PNG University of Technology.
Chicago Style (17th ed.) CitationLean, Glendon A. Counting Systems of Papua New Guinea and Oceania. Lae: PNG University of Technology, 1992.
MLA引文Lean, Glendon A. Counting Systems of Papua New Guinea and Oceania. PNG University of Technology, 1992.
警告：這些引文格式不一定是100％准確.