@article{61127,
      note = {"The discussion is based mainly on birds."},
      author = {Lack, David,},
      url = {http://library.usi.edu/record/61127},
      title = {The natural regulation of animal numbers.},
      publisher = {Clarendon Press,},
      recid = {61127},
      pages = {viii, 343 p.},
      address = {Oxford,},
      year = {1954},
}