Vrees, L.P.M. de`

Vrees, L.P.Mde`, 1987. Machakos Diocese rain water tank programme : a description of a self-reliant programme, Machakos, Kenya: Catholic Diocese of Machakos, Development Office. Available at: https://es.ircwash.org/sites/default/files/213.2-87MA-13295.pdf.