Hill & Knowlton - TobaccoTactics. tobaccotactics.org. Tobacco Control Research Group in the Department for Health at the University of Bath. [2020-08-09]. (原始内容存档于2023-03-27) (英语).
Hill & Knowlton - TobaccoTactics. tobaccotactics.org. Tobacco Control Research Group in the Department for Health at the University of Bath. [2020-08-09]. (原始内容存档于2023-03-27) (英语).