@book{15530,
	author = {Willoughby, Westel Woodbury},
	title = {Principles of the constitutional law of the United States},
	publisher = {Baker, Voorhis & co.},
	year = {1919.},
	address = {New York},
	note = {"An abridgement of the author's larger treatise in two volumes, published in 1910 under the title The constitutional law of the United States."}
}