APA

Reid W. V., Tunstall D. B., . (1993). Biodiversity indicators for policy makers. New York: World Resources Institute.

Chicago

Reid Walter V, Tunstall Daniel B, . 1993. Biodiversity indicators for policy makers. New York: World Resources Institute.

Harvard

Reid W. V., Tunstall D. B., . (1993). Biodiversity indicators for policy makers. New York: World Resources Institute.

MLA

Reid Walter V, Tunstall Daniel B, . Biodiversity indicators for policy makers. New York: World Resources Institute. 1993.