Halko, J. (1953). A study of the Oak Lane Community and analysis of population trends and denominational opportunities. Philadelphia Council of Churches.
Lua i Stíl Chicago (17ú heag.)Halko, John. A Study of the Oak Lane Community and Analysis of Population Trends and Denominational Opportunities. Philadelphia: Philadelphia Council of Churches, 1953.
Lua MLA (8ú heag.)Halko, John. A Study of the Oak Lane Community and Analysis of Population Trends and Denominational Opportunities. Philadelphia Council of Churches, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.