Charity Organization Society of the City of New York. The New York charities directory. Charity Organization Society in the City of New York.
Lua i Stíl Chicago (17ú heag.)Charity Organization Society of the City of New York. The New York Charities Directory. New York: Charity Organization Society in the City of New York.
Lua MLA (8ú heag.)Charity Organization Society of the City of New York. The New York Charities Directory. Charity Organization Society in the City of New York.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.