Working Hard, Working Poor: A Global Journey. : Oxford University Press, 2011-12-14. Oxford Scholarship Online. 2012-01-19. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199794645.001.0001/acprof-9780199794645>.
(2011-12-14). Working Hard, Working Poor: A Global Journey. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199794645.001.0001/acprof-9780199794645.
Working Hard, Working Poor: A Global Journey. : Oxford University Press, 2011-12-14. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199794645.001.0001/acprof-9780199794645.
Fields GS. Working Hard, Working Poor: A Global Journey. Oxford University Press; 2011. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199794645.001.0001/acprof-9780199794645. Accessed May 19, 2013.