Spalding, J. L. (1901). Progress in education: Address delivered before the National Education Association, July 9, 1901, Detroit, Michigan. Ave Maria.
Chicago-referens (17:e uppl.)Spalding, John Lancaster. Progress in Education: Address Delivered Before the National Education Association, July 9, 1901, Detroit, Michigan. Notre Dame, Ind.: Ave Maria, 1901.
MLA-referens (8:e uppl.)Spalding, John Lancaster. Progress in Education: Address Delivered Before the National Education Association, July 9, 1901, Detroit, Michigan. Ave Maria, 1901.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.