Lewis, J. P., & Uphoff, N. T. (1988). Strengthening the poor: What have we learned? Transaction Books.
Lua i Stíl Chicago (17ú heag.)Lewis, John P., agus Norman Thomas Uphoff. Strengthening the Poor: What Have We Learned? New Brunswick, USA: Transaction Books, 1988.
Lua MLA (8ú heag.)Lewis, John P., agus Norman Thomas Uphoff. Strengthening the Poor: What Have We Learned? Transaction Books, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.