Angrist, Joshua David, and Jörn-Steffen Pischke, Mostly Harmless Econometrics: An Empiricist’s Companion (Princeton: Princeton University Press, 2009)
Cameron, Adrian Colin, and P. K. Trivedi, Microeconometrics: Methods and Applications (Cambridge: Cambridge University Press, 2005) <http://www.loc.gov/catdir/toc/ecip051/2004022273.html>
Wooldridge, Jeffrey M., Econometric Analysis of Cross Section and Panel Data (Cambridge, Mass: MIT Press, 2002)