Field, B. C., & Field, B. C. (2006). Environmental Economics: An introductionBarry C. Field and Martha K. Field. McGraw-Hill.
Chicago Style (17th ed.) CitationField, Barry C., and Barry C. Field. Environmental Economics: An IntroductionBarry C. Field and Martha K. Field. McGraw-Hill, 2006.
MLA引文Field, Barry C., and Barry C. Field. Environmental Economics: An IntroductionBarry C. Field and Martha K. Field. McGraw-Hill, 2006.
警告:这些引文格式不一定是100%准确.