@article{1483870,
      author = {Marchman, Virginia A., and Dale, Philip S., and Fenson,  Larry,},
      url = {http://library.usi.edu/record/1483870},
      title = {MacArthur-Bates Communicative Development Inventories:  User's guide and technical manual.},
      recid = {1483870},
      pages = {1 online resource.},
}