Unknown. Photograph of Sister Valerie Riggs, S.B.S., Sister Doris Blum, S.B.S., and Mr. John Scott attending the Founder's Day Activities at Xavier University.
Chicago-viite (17. p.)Unknown. Photograph of Sister Valerie Riggs, S.B.S., Sister Doris Blum, S.B.S., and Mr. John Scott Attending the Founder's Day Activities at Xavier University.
MLA-viite (8. p.)Unknown. Photograph of Sister Valerie Riggs, S.B.S., Sister Doris Blum, S.B.S., and Mr. John Scott Attending the Founder's Day Activities at Xavier University.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.