@book{8521,
	author = {Thelen, Rolf.},
	title = {The substitution of other materials for wood ...},
	publisher = {Govt. Print. Off.,},
	year = {1917.},
	series = {United States. Dept. of Agriculture. Report,},
	address = {Washington,},
	note = {Studies of the lumber industry; pt. XI.}
}