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Filters: Keyword is bulgaria and Author is Abbott, D.  [Clear All Filters]
1994
W. Hogrewe, Abbott, D., and Jamiolkowski, M., “Wastewater treatment plant O&M audit training at Gabrovo and Veliko Tarnovo, Bulgaria”, vol. no. 447. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xi, 35 p.: 1 tab., 1994.
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