Links
[1] https://www.e-education.psu.edu/geog128/node/785
[2] https://www.e-education.psu.edu/geog128/node/789
[3] http://www.geog.psu.edu/
[4] http://guides.libraries.psu.edu/onlinestudentlibraryguide
[5] https://www.e-education.psu.edu/geog128/orientation/policymemo
[6] https://www.e-education.psu.edu/geog128/orientation/gettinghelp