Παραπομπή σε μορφή APA (7η εκδ.)

Lewis, J. P., & Uphoff, N. T. (1988). Strengthening the poor: What have we learned? Transaction Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lewis, John P., και Norman Thomas Uphoff. Strengthening the Poor: What Have We Learned? New Brunswick, USA: Transaction Books, 1988.

Παραπομπή σε μορφή MLA (8th εκδ.)

Lewis, John P., και Norman Thomas Uphoff. Strengthening the Poor: What Have We Learned? Transaction Books, 1988.