Zurcher, L. A., & Bonjean, C. M. (1970). Planned social intervention: An interdisciplinary anthology. Chandler Pub. Co.
Lua i Stíl Chicago (17ú heag.)Zurcher, Louis A., agus Charles M. Bonjean. Planned Social Intervention: An Interdisciplinary Anthology. Scranton: Chandler Pub. Co, 1970.
Lua MLA (9ú heag.)Zurcher, Louis A., agus Charles M. Bonjean. Planned Social Intervention: An Interdisciplinary Anthology. Chandler Pub. Co, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.