http://tobaccodocuments.org/bliley_lor/00499642-9644.html
Holtzman, Alexander; Jacob, Edwin J.; Shinn, William W. "[Transmitting Various Documents and Federal Reports Regarding Smoking and Health]". 06 Jun 1968. Bates: 00499642-00499644.
http://tobaccodocuments.org/bliley_lor/00499642-9644.html