Design and operation of septic tanks: third European seminar for sanitary engineers World Health Organization, Geneva.
Third European Seminar for Sanitory engineers, 27 October-1 November, 1952, London
Design and operation of septic tanks: third European seminar for sanitary engineers World Health Organization, Geneva. - Geneva World Health Organization 1953 - 122p. 24cm.
628.742 / E81D
Design and operation of septic tanks: third European seminar for sanitary engineers World Health Organization, Geneva. - Geneva World Health Organization 1953 - 122p. 24cm.
628.742 / E81D