Tham khảo Sói núi Cascade

  1. ↑ Wozencraft, W. C. (2005). “Order Carnivora”. Trong Wilson, D. E.; Reeder, D. M. (biên tập). Mammal Species of the World: A Taxonomic and Geographic Reference . Johns Hopkins University Press. tr. 532–628. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ↑ Charles Bergman (2003). Wild Echoes: Encounters With the Most Endangered Animals in North America. University of Illinois Press. tr. 256–. ISBN 978-0-252-07125-6.
  3. ↑ Joshua Ross Ginsberg; David David Whyte Macdonald (1990). Foxes, Wolves, Jackals, and Dogs: An Action Plan for the Conservation of Canids. IUCN. tr. 6–. ISBN 978-2-88032-996-9.
  4. ↑ Barry Lopez (2004). Of Wolves and Men. Simon and Schuster. tr. 13–. ISBN 978-0-7432-4936-2.
  5. ↑ Wozencraft, W. C. (2005). “Order Carnivora”. Trong Wilson, D. E.; Reeder, D. M. (biên tập). Mammal Species of the World: A Taxonomic and Geographic Reference . Johns Hopkins University Press. tr. 575–577. ISBN 978-0-8018-8221-0. OCLC 62265494. url=https://books.google.com/books?id=JgAMbNSt8ikC&pg=PA576
  6. ↑ The Encyclopedia of Vanished Species by David Day, Universe Books ltd. 1981. ISBN 0-947889-30-2

Tài liệu tham khảo

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