@article{1379219,
      author = {Gann, William D.,},
      url = {http://library.usi.edu/record/1379219},
      title = {How to make profits trading in commodities : a study of  the commodity market : with charts and rules for successful  trading and investing /},
      recid = {1379219},
      pages = {1 online resource (481 pages)},
}