The Princeton encyclopedia of Islamic political thought

 Zaman, Muhammad Qasim; Crone, Patricia; Kadi, Wadad; Stewart, Devin J.;

Princeton, N.J. : Princeton University Press , 2013

Graduate programs in engineering & applied sciences 2014

 Peterson's;

Princeton, N.J. : Peterson's , 1997

Graduate programs in the physical sciences, mathematics, agricultural sciences, the environment & natural resources

 Peterson's;

Princeton, N.J. : Peterson's , 1998