@article{221720,
      recid = {221720},
      author = {Axelrod, Amy. and McGinley-Nally, Sharon,},
      title = {Pigs go to market : fun with math and shopping /},
      publisher = {Simon & Schuster Books for Young Readers,},
      address = {New York :},
      pages = {1 v. (unpaged) :},
      year = {1997},
      abstract = {Concepts of price and quantity enter the picture when Mrs.  Pig wins a five-minute shopping spree at the supermarket on  Halloween night.},
      url = {http://library.usi.edu/record/221720},
}