@book{34737,
	author = {Kreps, Juanita M.},
	title = {Lifetime allocation of work and leisure,},
	publisher = {For sale by Supt. of Docs., U.S. Govt. Print. Off.,},
	year = {1968]},
	series = {United States. Social Security Administration. Office of Research and Statistics. Research report},
	address = {[Washington,}
}