@article{457032,
      recid = {457032},
      author = {Van Emden, H. F. and Harrington, R.},
      title = {Aphids as crop pests [electronic resource] /},
      publisher = {CABI,},
      address = {Wallingford :},
      pages = {xxviii, 717 p.},
      year = {2007},
      url = {http://library.usi.edu/record/457032},
}