Biblio

M. Yhdego, Lunddal, M., y Mogensen, U., «Designing wastewater lagoons for tropical climates», Water and wastewater international, pp. p. 47-50 : 1 fig., 2 tab., 1992.

M. Yhdego, «Waste stabilization ponds in Tanzania», Waterlines, an international journal of water, sanitation and waste, pp. p. 10-12: photogr., tab., 1989.