APA

National Cancer Institute (U.S.), . (1986). [Helping smokers quit: a guide for the pharmacist]. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1986. [Helping smokers quit: a guide for the pharmacist]. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1986). [Helping smokers quit: a guide for the pharmacist]. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . [Helping smokers quit: a guide for the pharmacist]. [Washington, D.C: . 1986.