Wong, J. (1973). Singapore: The church in the midst of social change. Church Growth Study Centre.
Lua i Stíl Chicago (17ú heag.)Wong, James. Singapore: The Church in the Midst of Social Change. Singapore: Church Growth Study Centre, 1973.
Lua MLA (8ú heag.)Wong, James. Singapore: The Church in the Midst of Social Change. Church Growth Study Centre, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.