@book{15108,
	author = {United States. Health, Education and Welfare, Deptartment of-Washington, D.C. and Haenszel, William ; ed.},
	title = {Epidemiological approaches to the study of cancer and other chronic diseases},
	publisher = {The Auth.},
	year = {n.d.},
	series = {National Cancer Institute monograph },
	address = {Washington, D. C.}
}