Payne, G.

Davidson, F. & Payne, G., 1983. Urban projects manual : a guide to the preparation of projects for new development and upgrading relevant to low income groups, based on the approach used for the Ismailia Demonstration Projects, Egypt, (Liverpool planning manual no. 1) Liverpool, UK: Liverpool University Press. Available at: https://es.ircwash.org/sites/default/files/205.42-83UR-18728.pdf.