Water works engineering.

v.88:no.1/13(1935); v.88:no.14/26(1935); v.89:no.1/13(1936); v.89:no.14/26(1936); v.90:no.1/13(1937); v.90:no.14/26(1937); v.91:no.1/13(1938); v.91:no.14/26(1938); v.92:no.1/13(1939); v.92:no.14/26(1939); v.93:1; v.93:2; v.93:no.1/13(1940); v.93:no.14/26(1940); v.94:1; v.94:2; v.94:no.1/13(1941); v.94:no.14/27(1941); v.95:1; v.95:2; v.95:no.1/12(1942); v.95:no.13/26(1942); v.96:1; v.96:2; v.96:no.1/13(1943); v.96:no.14/26(1943); v.97:1; v.97:2; v.97:no.1/13(1944); v.97:no.14/26(1944); v.98:1; v.98:2; v.98:no.1/13(1945); v.98:no.14/26(1945); v.99:1; v.99:2; v.99:no.1/13(1946); v.99:no.14/26(1946); v.100:1; v.100:2; v.100 1947; v.100:no.1/13(1947); v.100:no.14/26(1947); v.101 1948; v.102 1949; v.103 1950; v.104 1951; v.105 1952; v.106 1953; v.107 1954; v.108 1955; v.109 1956; v.110 1957; v.111 1958; v.112 1959; v.113 1960; v.114 1961; v.115; v.115 1962; v.116; v.116 1963