Gerlach, K. K., Shopland, D. R., Hartman, A. M., Gibson, J. T., & Pechacek, T. F. (1997). Workplace smoking policies in the United States: Results from a national survey of more than 100,000 workers. BMJ Group.
Stile di citazione ChicagoGerlach, K. K., D. R. Shopland, A. M. Hartman, J. T. Gibson, e T. F. Pechacek. Workplace Smoking Policies in the United States: Results From a National Survey of More Than 100,000 Workers. BMJ Group, 1997.
Citazione MLAGerlach, K. K., et al. Workplace Smoking Policies in the United States: Results From a National Survey of More Than 100,000 Workers. BMJ Group, 1997.
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