APA-viite (7. p.)

Charity Organization Society of the City of New York & Welfare Council of New York City. Directory of social agencies of the City of New York. Columbia University Press [etc.].

Chicago-viite (17. p.)

Charity Organization Society of the City of New York ja Welfare Council of New York City. Directory of Social Agencies of the City of New York. New York: Columbia University Press [etc.].

MLA-viite (8. p.)

Charity Organization Society of the City of New York ja Welfare Council of New York City. Directory of Social Agencies of the City of New York. Columbia University Press [etc.].