@book{35879,
	author = {National Referral Center (U.S.) and National Referral Center for Science and Technology (U.S.)},
	title = {A directory of information resources in the United States: social sciences.},
	publisher = {Library of Congress; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]},
	year = {1973.},
	address = {Washington},
	edition = {Rev. ed.},
	note = {Issued in 1965 by the center under its earlier name: National Referral Center for Science and Technology.}
}