@book{264586,
	author = {National Cancer Institute (U.S.)},
	title = {Development of an infectivity assay for mouse mammary-tumor virus.},
	year = {1969]},
	address = {[Washington, D.C.,},
	note = {[Reprint from J. Nat. Cancer Inst., 43: 1289-1296, 1969].}
}