van Schayck Onno CP, Jackson Christine, Otten Roy, Ringlever Linda, Hiemstra Marieke, & Engels Rutger CME. (2009). Efficacy of smoking prevention program 'Smoke-free Kids': Study protocol of a randomized controlled trial. BMC.
Chicago Style (17th ed.) Citationvan Schayck Onno CP, Jackson Christine, Otten Roy, Ringlever Linda, Hiemstra Marieke, and Engels Rutger CME. Efficacy of Smoking Prevention Program 'Smoke-free Kids': Study Protocol of a Randomized Controlled Trial. BMC, 2009.
MLA (9th ed.) Citationvan Schayck Onno CP, et al. Efficacy of Smoking Prevention Program 'Smoke-free Kids': Study Protocol of a Randomized Controlled Trial. BMC, 2009.
Warning: These citations may not always be 100% accurate.