George Gilmary Higgins. The Catholic University of America, The American Catholic History Research Center and University Archives.
Chicago Style aipamenaGeorge Gilmary Higgins. The Catholic University of America, The American Catholic History Research Center and University Archives.
MLA aipamenaGeorge Gilmary Higgins. The Catholic University of America, The American Catholic History Research Center and University Archives.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.