“A Course in the Use of a Library and in Children's Reading at the Slippery Rock State Normal School” delivered in Harrisburg, Pennsylvania by Secretary, Board of Principles, H. B. Davis. , 1911-11-09, Box: 1, Folder: 2. Albert E. Maltby Collection, 3-2. Slippery Rock University Archives and Special Collections. http://as-slippery.klnpa.org/repositories/2/archival_objects/12568 Accessed May 23, 2026.