Παραπομπή APA

Halvorsen, R., & Layton, D. F. (2006). Explorations in environmental and natural resource economics: Essays in honor of Gardner M. Brown, Jr. Cheltenham: Edward Elgar.

Παραπομπή Chicago Style

Halvorsen, Robert, and David F. Layton. Explorations in Environmental and Natural Resource Economics: Essays in Honor of Gardner M. Brown, Jr. Cheltenham: Edward Elgar, 2006.

Παραπομπή MLA

Halvorsen, Robert, and David F. Layton. Explorations in Environmental and Natural Resource Economics: Essays in Honor of Gardner M. Brown, Jr. Cheltenham: Edward Elgar, 2006.

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