Design of pour-flush latrines / by D. Duncan Mara.
Duncan Mara, D.
Design of pour-flush latrines / by D. Duncan Mara. - Washington. : World Bank - 44 p. - Technical note; no. 15 .
Design of pour-flush latrines / by D. Duncan Mara. - Washington. : World Bank - 44 p. - Technical note; no. 15 .