M. Strauss,
«Food from waste»,
World health forum, pp. p. 46-59: fig., photogr., tab., 1990.
M. Strauss y Blumenthal, U. J.,
«Human waste use in agriculture and aquaculture : utilization practices and health perspectives : executive summary», vol. no. 09/90. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. viii, 52 p.: fig., photogr., tab., 1990.
S. Cairncross,
«Sanitation and the control of hookworm disease», in
Hookworm disease : current status and new directions, 1990, pp. P. 304-317: 4 fig., 3 tab.
M. Strauss y Blumenthal, U. J.,
«Use of human wastes in agriculture and aquaculture : utilization practices and health perspectives», vol. no. 08/90. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. v, 327 p.: fig., map, tab., 1990.