@book{1495,
	author = {Mason, C. F. and Macdonald, S. M.},
	title = {Otters :},
	publisher = {Cambridge University Press,},
	year = {1986.},
	address = {Cambridge [Cambridgeshire] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/cam032/85011711.html}
}