APA aipamena

Kent, D. L. (1990). GUMTREE: General utilisation model of timber resources - economic evaluation. Wood Utilisation Research Centre, Dept. of Conservation and Land Management.

Chicago Style aipamena

Kent, D. L. GUMTREE: General Utilisation Model of Timber Resources - Economic Evaluation. Harvey, W.A.: Wood Utilisation Research Centre, Dept. of Conservation and Land Management, 1990.

MLA aipamena

Kent, D. L. GUMTREE: General Utilisation Model of Timber Resources - Economic Evaluation. Wood Utilisation Research Centre, Dept. of Conservation and Land Management, 1990.