Oxfam, London School of Hygiene and Tropical Medicine. Ross Institute of Tropical Hygiene, & Pacey, A. (1978). Sanitation in developing countries. Wiley.
Dyfyniad Arddull ChicagoOxfam, London School of Hygiene and Tropical Medicine. Ross Institute of Tropical Hygiene, and Arnold Pacey. Sanitation in Developing Countries. Chichester [Eng. ] ; New York: Wiley, 1978.
Dyfyniad MLAOxfam, et al. Sanitation in Developing Countries. Wiley, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.