APA
Ohsfeldt R. L., Capilouto Eli I & Boyle Raymond G. (1998). Tobacco taxes, smoking restrictions, and tobacco use. Cambridge, MA: NBER.
Chicago
Ohsfeldt Robert Lye, Capilouto Eli I and Boyle Raymond G. 1998. Tobacco taxes, smoking restrictions, and tobacco use. Cambridge, MA: NBER.
Harvard
Ohsfeldt R. L., Capilouto Eli I and Boyle Raymond G. (1998). Tobacco taxes, smoking restrictions, and tobacco use. Cambridge, MA: NBER.
MLA
Ohsfeldt Robert Lye, Capilouto Eli I and Boyle Raymond G. Tobacco taxes, smoking restrictions, and tobacco use. Cambridge, MA: NBER. 1998.