Foundation for Environmental Conservation. (1974). Environmental conservation. Elsevier Sequoia.
Chicago Style (17th ed.) CitationFoundation for Environmental Conservation. Environmental Conservation. Lausanne: Elsevier Sequoia, 1974.
MLA引文Foundation for Environmental Conservation. Environmental Conservation. Elsevier Sequoia, 1974.
警告:這些引文格式不一定是100%准確.