@book{24358,
	author = {Pammel, L. H. and Weems, Julius Buel,},
	title = {The grasses of Iowa.},
	year = {1901-04.},
	address = {Des Moines,},
	note = {Part I published as Bulletin no. 1 of the Iowa Geological Survey; pt.II as Supplementary report of the Iowa Geological Survey.}
}