Wallman, S. (1977). Perceptions of development. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Wallman, Sandra. Perceptions of Development. Cambridge: Cambridge University Press, 1977.
Lua MLA (9ú heag.)Wallman, Sandra. Perceptions of Development. Cambridge University Press, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.