Perlman, R. (1972). Community Organization And Social Planning Robert Perlman And Arnold Gurin. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Perlman, Robert. Community Organization And Social Planning Robert Perlman And Arnold Gurin. John Wiley & Sons, 1972.
Lua MLA (8ú heag.)Perlman, Robert. Community Organization And Social Planning Robert Perlman And Arnold Gurin. John Wiley & Sons, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.