Laird, P. (1988). External costs of road transport of bulk exports through New South Wales ports. Australian National University, Centre for Resource and Environmental Studies.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Laird, Philip. External Costs of Road Transport of Bulk Exports Through New South Wales Ports. [Canberra]: Australian National University, Centre for Resource and Environmental Studies, 1988.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Laird, Philip. External Costs of Road Transport of Bulk Exports Through New South Wales Ports. Australian National University, Centre for Resource and Environmental Studies, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.