@book{264245,
	author = {National Cancer Institute (U.S.)},
	title = {Direct mechanism of mammary carcinogenesis induced by 7, 12-dimethyl-benz [a) anthracene.},
	year = {1974]},
	address = {[Washington, D.C.,},
	note = {Reprinted from JNCI, v.53, no.3, Sept. 1974.}
}