APA استشهاد

May, J. R., & Daly, E. (2016). Environmental constitutionalism ( Vol. 2). Elgar Research Foundation.

استشهاد بنمط شيكاغو

May, James R., و Erin Daly. Environmental Constitutionalism ( Vol. 2). Cheltenham: Elgar Research Foundation, 2016.

MLA استشهاد

May, James R., و Erin Daly. Environmental Constitutionalism ( Vol. 2). Elgar Research Foundation, 2016.