Style de citation APA (7e éd.)

Wigston, D. L. (1986). Environmental planning legislation in Papua New Guinea: The example of timber rights purchases. Papua New Guinea University of Technology.

Style de citation Chicago (17e éd.)

Wigston, David L. Environmental Planning Legislation in Papua New Guinea: The Example of Timber Rights Purchases. [Lae]: Papua New Guinea University of Technology, 1986.

Style de citation MLA (9e éd.)

Wigston, David L. Environmental Planning Legislation in Papua New Guinea: The Example of Timber Rights Purchases. Papua New Guinea University of Technology, 1986.