APA استشهاد

Elliott, J. A. (2006). Introduction to sustainable development (3rd ed.). Routledge.

استشهاد بنمط شيكاغو

Elliott, Jennifer A. Introduction to Sustainable Development. 3rd ed. Oxon: Routledge, 2006.

MLA استشهاد

Elliott, Jennifer A. Introduction to Sustainable Development. 3rd ed. Routledge, 2006.