%0 Generic %E Ashenfelter, Orley, %E Layard, Richard, %@ 9780444878571 (electronic bk.) %@ 0444878572 (electronic bk.) %T Handbook of labor economics. %U https://ezaccess.libraries.psu.edu/login?url=http://www.sciencedirect.com/science/book/9780444878571 %7 1st ed.