Collier, J., & Elliott, J. L. (1919). Why community organization?: A statement of a need, and some suggestions for meeting it. National Social Unit Conference.
Lua i Stíl Chicago (17ú heag.)Collier, John, agus John Lovejoy Elliott. Why Community Organization?: A Statement of a Need, and Some Suggestions for Meeting It. [Cincinnati]: National Social Unit Conference, 1919.
Lua MLA (8ú heag.)Collier, John, agus John Lovejoy Elliott. Why Community Organization?: A Statement of a Need, and Some Suggestions for Meeting It. National Social Unit Conference, 1919.
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