Bird Census Techniques. Bibby, C. J., Burgess, N. D., & Hill, D. A. Academic Press, London, 1992.
bibtex   
@BOOK{Bibetal92,
  title = {Bird Census Techniques},
  publisher = {Academic Press},
  year = {1992},
  author = {Bibby, C. J. and Burgess, N. D. and Hill, D. A.},
  address = {London},
  subdatabase = {distance}
}
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