@article{1561931,
      recid = {1561931},
      author = {Preston, Dennis Richard, and Bayley, Robert, and Li,  Xiaoshi},
      title = {Variation in second and heritage languages :  crosslinguistic perspectives /},
      pages = {1 online resource (387 pages) :},
      url = {http://library.usi.edu/record/1561931},
}