Curtis, J., Curtis, W., & Lieberman, F. (1982). The world of George Perkins Marsh, America's first conservationist and environmentalist: An illustrated biography. Countryman Press.
Chicago Style (17th ed.) CitationCurtis, Jane, Will Curtis, and Frank Lieberman. The World of George Perkins Marsh, America's First Conservationist and Environmentalist: An Illustrated Biography. Woodstock, Vt: Countryman Press, 1982.
MLA (9th ed.) CitationCurtis, Jane, et al. The World of George Perkins Marsh, America's First Conservationist and Environmentalist: An Illustrated Biography. Countryman Press, 1982.
Warning: These citations may not always be 100% accurate.