Meier, B. (1998). Memos show tobacco firms were obsessed with nicotine. Today.
Citación estilo ChicagoMeier, Barry. "Memos Show Tobacco Firms Were Obsessed with Nicotine." Today 1998.
Cita MLAMeier, Barry. "Memos Show Tobacco Firms Were Obsessed with Nicotine." Today, 1998.
Warning: These citations may not always be 100% accurate.