@book{546219,
	author = {National Academy of Sciences. and National Research Council (U.S.).},
	title = {Implementing construction by contract or day labor },
	publisher = {National Academy of Sciences,},
	year = {1981.},
	address = {Washington, D.C. :},
	note = {"Prepared under contract AID/OTR-C-1591, project 931-1116, U.S. Agency for International Development."}
}