Grafton, R. Q., Pendleton, L. H., & Nelson, H. W. (2001). A dictionary of environmental economics, science, and policy. Cheltenham: Edward Elgar.
استشهاد بنمط شيكاغوGrafton, R. Quentin, Linwood H. Pendleton, and Harry W. Nelson. A Dictionary of Environmental Economics, Science, and Policy. Cheltenham: Edward Elgar, 2001.
MLA استشهادGrafton, R. Quentin, Linwood H. Pendleton, and Harry W. Nelson. A Dictionary of Environmental Economics, Science, and Policy. Cheltenham: Edward Elgar, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.