@book{20830,
	author = {Clough, Shepard Bancroft and Marburg, Theodore Francis},
	title = {The economic basis of American civilization},
	publisher = {Crowell},
	year = {[1968]},
	address = {New York},
	note = {A revision and expansion of The American way, by S. B. Clough, published in 1953.}
}