APA aipamena

Duffy, C. M. (1966). Katharine Drexel: A biography. P. Reilly Co..

Chicago Style aipamena

Duffy, Consuela Marie. Katharine Drexel: A Biography. Philadelphia: P. Reilly Co., 1966.

MLA aipamena

Duffy, Consuela Marie. Katharine Drexel: A Biography. P. Reilly Co., 1966.