Sweet, Carroll Van Rennsaeleer, 1892- & Johnson, R. P. A. (Robert Pilson Albert), 1888-. Selection of lumber for farm and home building., book, January 1958; (https://digital.library.unt.edu/ark:/67531/metadc6169/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .