http://tobaccodocuments.org/nysa_indexed/TI00450874.html
Bramle, C R; Ellestad; Blassingame, Denise. "[Re: Aircraft Smoking Ban]". 30 Sep 1987 (est.). Bates: TI00450874-TI00450886. http://tobaccodocuments.org/nysa_indexed/TI00450874.html