@article {26632,
	title = {Geographic variation in the wood frog Rana sylvatica},
	volume = {61},
	year = {1959},
	pages = {350-389},
	publisher = {American Midland Naturalist},
	url = {http://www.jstor.org/stable/pdfplus/2422506.pdf},
	author = {Martof, Bernard S. and Humphries, Robert L.}
}
