Smith, G. H. (1950). Conservation of natural resources (of the United States). Wiley.
Chicago Style (17th ed.) CitationSmith, Guy Harold. Conservation of Natural Resources (of the United States). N.Y.: Wiley, 1950.
MLA引文Smith, Guy Harold. Conservation of Natural Resources (of the United States). Wiley, 1950.
警告:這些引文格式不一定是100%准確.