Harris, K. ., Stearns, J. ., Kovach, R. ., & Harrar, S. . (1969). Enforcing an outdoor smoking ban on a college campus: effects of a multicomponent approach. Journal of American College Health : J of ACH, 58(2), 121-6. https://doi.org/10.1080/07448480903221285 (Original work published 1969)