@book{12264,
	author = {Smith, Dwight R. and Johnson, W. M.},
	title = {Effects of cattle grazing on a ponderosa pine-bunchgrass range in Colorado},
	publisher = {U.S. Dept. of Agriculture, Forest Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,},
	year = {1967.},
	series = {United States. Dept. of Agriculture. Technical bulletin ;},
	address = {Washington,},
	note = {Replaces Effect of grazing intensity upon vegetation and cattle gains on ponderosa pine-bunchgrass ranges of the Front Range of Colorado, by W. M. Johnson, issued as U.S. Dept. of Agriculture Circular no. 929.}
}