Loomis, B. R., Shafer, P. R., & van Hasselt, M. (2013). The Economic Impact of Smoke-Free Laws on Restaurants and Bars in 9 States. Centers for Disease Control and Prevention.
استشهاد بنمط شيكاغوLoomis, Brett R., Paul R. Shafer, و Martijn van Hasselt. The Economic Impact of Smoke-Free Laws On Restaurants and Bars in 9 States. Centers for Disease Control and Prevention, 2013.
MLA استشهادLoomis, Brett R., Paul R. Shafer, و Martijn van Hasselt. The Economic Impact of Smoke-Free Laws On Restaurants and Bars in 9 States. Centers for Disease Control and Prevention, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.