National Clearinghouse for Smoking and Health.
[Washington] : U.S. Public Health Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], [1968]
[Rev.
National Clearinghouse for Smoking and Health.
[Washington] : U.S. Public Health Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], [1971]