Burghart, H. E. (1979). Sugar from Canada. Washington: U.S. International trade commission.
Trích dẫn kiểu ChicagoBurghart, Harold E. Sugar From Canada. Washington: U.S. International trade commission, 1979.
MLA引文Burghart, Harold E. Sugar From Canada. Washington: U.S. International trade commission, 1979.
警告:这些引文格式不一定是100%准确.