UNESCO published this text, by Alain Borie and François Denieul, in 1984. The World Heritage Convention was enacted in 1972, and the first properties were inscribed in 1978, so this is a rather early text in the production of the “world heritage” concept in its urban derivations.
This is a classical manual, based on the decomposition of the urban tissues in systems: lots, streets, buildings, open spaces… a lot of images in the final part.