Cita APA (7a ed.)

Lean, G. A. (1992). Counting systems of Papua New Guinea and Oceania. PNG University of Technology.

Cita Chicago Style (17a ed.)

Lean, Glendon A. Counting Systems of Papua New Guinea and Oceania. Lae: PNG University of Technology, 1992.

Cita MLA (9a ed.)

Lean, Glendon A. Counting Systems of Papua New Guinea and Oceania. PNG University of Technology, 1992.