Tolong jelaskan mengenai Bibliografi dari Henry Sheldon

A Critical and Descriptive Bibliography of the History of Education in the State of Oregon. Eugene: University of Oregon Press, 1929.

Student Life and Customs. Ayer Co Pub, 1975.

Hitchman, James H. Henry Davidson Sheldon and the University of Oregon, 1874-1948: a Biographical Essay with Selected Letters. Bellingham: Western Washington University, Center for Pacific Northwest, 1979.