Roy, K. C., & Clark, C. (1994). Technological change and rural development in poor countries: Neglected issues. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Roy, K. C., agus Cal Clark. Technological Change and Rural Development in Poor Countries: Neglected Issues. Calcutta ; New York: Oxford University Press, 1994.
Lua MLA (8ú heag.)Roy, K. C., agus Cal Clark. Technological Change and Rural Development in Poor Countries: Neglected Issues. Oxford University Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.