Gaya APA

Warford, R, J, S, &, J, J. (1976). Village Water Supply Economics and Policy in the Developing World . Baltimore and London: The Johns Hopkins Press..

Gaya MLA

Warford, Robert, J, Sauni, &, Jeremy, J.. "Village Water Supply Economics and Policy in the Developing World". Baltimore and London: The Johns Hopkins Press., 1976. Text.