National Conference of Catholic Charities (U.S.) & Society of St. Vincent de Paul (U.S.). (1940). Invitation: Twenty-sixth meeting, National Conference Catholic Charities and the annual meeting, the Society of St. Vincent de Paul, Chicago, Illinois, Nov. 17-20, 1940. [publisher not identified].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Conference of Catholic Charities (U.S.) এবং Society of St. Vincent de Paul (U.S.). Invitation: Twenty-sixth Meeting, National Conference Catholic Charities and the Annual Meeting, the Society of St. Vincent De Paul, Chicago, Illinois, Nov. 17-20, 1940. [Chicago, Ill.]: [publisher not identified], 1940.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNational Conference of Catholic Charities (U.S.) এবং Society of St. Vincent de Paul (U.S.). Invitation: Twenty-sixth Meeting, National Conference Catholic Charities and the Annual Meeting, the Society of St. Vincent De Paul, Chicago, Illinois, Nov. 17-20, 1940. [publisher not identified], 1940.