Collier, J., & Elliott, J. L. (1919). Why community organization?: A statement of a need, and some suggestions for meeting it. National Social Unit Conference.
Chicago-referens (17:e uppl.)Collier, John, och John Lovejoy Elliott. Why Community Organization?: A Statement of a Need, and Some Suggestions for Meeting It. [Cincinnati]: National Social Unit Conference, 1919.
MLA-referens (8:e uppl.)Collier, John, och John Lovejoy Elliott. Why Community Organization?: A Statement of a Need, and Some Suggestions for Meeting It. National Social Unit Conference, 1919.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.