Não informado. Bibliography on smoking and health. National Library of Medicine, National Clearing House for Smoking and.
Chicago-viite (17. p.)Não informado. Bibliography on Smoking and Health. Washington: National Library of Medicine, National Clearing House for Smoking and.
MLA-viite (8. p.)Não informado. Bibliography on Smoking and Health. National Library of Medicine, National Clearing House for Smoking and.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.