United Nations Department of Economic and Social Affairs -New York, NY, US,
“Ground-water storage and artificial recharge”, vol. no. 2. United Nations, New York, NY, USA, p. x, 270 p. : fig., tab., 1975.
V. Vitayaudom,
“Iron removal from water supplies”, vol. no. 189. Asian Institute of Technology, Bangkok, Thailand, p. xii + 135 p. : 21 tabs., 30 figs., refs., 1975.
D. P. H. E. Bangladesh BD,
“Lecture papers for training of assistant engineers”. Bangladesh, Department of Public Health Engineering (DPHE), Dhaka, Bangladesh, p. various paging, 1975.
M. T. Sandoval,
“Legislacion de aguas en America Central, Caribe y Mexico”, vol. no. 8. Food and Agriculture Organization (FAO), Rome, Italy, p. 196 p., 1975.
K. Siong Hum,
“Removal of iron from groundwater”, vol. no. 838. Asian Institute of Technology, Bangkok, Thailand, p. v + 49 p. : tabs., refs., apps., 1975.
EAWAG -Duebendorf, CH, Swiss Federal Institute for Environmental Science and Technology and University of Oklahoma -Norman, OK, US,
“A study on historical methods of water and sewage treatment”. Swiss Federal Institute for Environmental Science and Technology (EAWAG), Duebendorf, Switzerland, p. 15, ix, 23 p. : fig., photogr., 1975.
V. Abramo,
“Wells manual”. Peace Corps, Washington, DC, USA, p. 248 p., 1975.