Lees, R., & Smith, G. A. N. (1975). Action-research in community development. Routledge & K. Paul.
Lua i Stíl Chicago (17ú heag.)Lees, Ray, agus George Antony Noel Smith. Action-research in Community Development. London ; Boston: Routledge & K. Paul, 1975.
Lua MLA (8ú heag.)Lees, Ray, agus George Antony Noel Smith. Action-research in Community Development. Routledge & K. Paul, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.