@article{Fagan2007,
author = {Fagan, P. and Shavers, V. and Lawrence, D. and Gibson, J.T. and Ponder, P.},
title= {Cigarette smoking and quitting behaviours among unemployed adults in the United States},
year = {2007},
doi = {10.1080/14622200601080331},
volume = {9},
number = {2},
pages = {241--248},
}