N. Ruizhu and Xutong, S.,
“Construction and development of city and town water supply in People's Republic of China”,
Water supply : the review journal of the International Water Supply Association, pp. p. 20-28: tab., 1990.
C. O. Suna- Hisca Bogota,
“El agua y la salud”. Chusos, Bogota, Colombia, p. 42 p.: drawing, 1990.
F. Valiron,
Gestion des eaux : principes, moyens, structures, 2nd rev. ed.nd ed. Paris, France: Presses de l'Ecole Nationale des Ponts et Chaussees, 1990, p. 350 p.: 107 fig., 72 tab.
I. D. Yayasan Di Yogyakarta, Jakarta, I. D. U. N. I. C. E. F. -, and Jakarta, I. D. National D.,
“Monitoring and evaluation of public hydrants & water terminals in North Jakarta : final report”. Yayasan Dian Desa, Yogyakarta, Indonesia, p. ca. 140 p.: fig., tab., maps, 1990.