Newberry Library (Chicago). (1959). A catalogue of printed materials relating to the Philippine Islands 1519-1900, in the Newberry Library: Compiled by Doris Varner Welsh. [s.n.].
Chicago-referens (17:e uppl.)Newberry Library (Chicago). A Catalogue of Printed Materials Relating to the Philippine Islands 1519-1900, in the Newberry Library: Compiled by Doris Varner Welsh. Chicago: [s.n.], 1959.
MLA-referens (9:e uppl.)Newberry Library (Chicago). A Catalogue of Printed Materials Relating to the Philippine Islands 1519-1900, in the Newberry Library: Compiled by Doris Varner Welsh. [s.n.], 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.