Region of Astonishing Beauty The Botanical Exploration of the Rocky Mountains Williams, Roger L. Heftet / 2003 / Engelsk
Origins of Federal Support for Higher Education George W. Atherton and the Land-Grant College Movement Williams, Roger L. Heftet / 1991 / Engelsk
Evan Pugh’s Penn State America’s Model Agricultural College Williams, Roger L. Innbundet / 2018 / Engelsk
