Edwards, J. N., & Booth, A. (1973). Social participation in urban society. Schenkman Pub.
Lua i Stíl Chicago (17ú heag.)Edwards, John N., agus Alan Booth. Social Participation in Urban Society. Cambridge, Mass: Schenkman Pub, 1973.
Lua MLA (9ú heag.)Edwards, John N., agus Alan Booth. Social Participation in Urban Society. Schenkman Pub, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.