@book {4930,
	title = {An illustrated flora of the Northern United States, ed. 2},
	year = {1913},
	note = {016},
	publisher = {Charles Scribner{\textquoteright}s Sons},
	organization = {Charles Scribner{\textquoteright}s Sons},
	chapter = {83},
	address = {New York},
	author = {Britton, N. L. and Brown, A.}
}
