References

 

Alderton, David. The encyclopedia of animals. Chartwell books, Inc., 2009. Pp. 99, 102.

Mech, David. The wolf, the ecology and behavior of an endangered species. Doubleday, 1970.

World of animals Magazine. Imagine publishing. Pp. 35-43

http://www.nwf.org/wildlife/wildlife-library/mammals/gray-wolf.aspx

http://en.wikipedia.org/wiki/Gray_wolf

http://en.wikipedia.org/wiki/Wolf_hunting

http://www.ethiopianwolf.org/home

http://www.wolf.org/

http://www.fws.gov/redwolf/naturalhistory.html

http://www.pbs.org/wgbh/nova/wolves/howl.html