General regulations for the execution and maintenance of works under the management of the Department of Waterways, Trade and Industry : enacted February 1, 1901, supplemented by the amendments made thereto up to February 1, 1915, and by the administrative provisions of June 23, 1930. - Collectie Data Knowledge Graph - the-other-interface - Nieuwe Instituut LOD

General regulations for the execution and maintenance of works under the management of the Department of Waterways, Trade and Industry : enacted February 1, 1901, supplemented by the amendments made thereto up to February 1, 1915, and by the administrative provisions of June 23, 1930.

General regulations for the execution and maintenance of works under the management of the Department of Waterways, Trade and Industry : enacted February 1, 1901, supplemented by the amendments made thereto up to February 1, 1915, and by the administrative provisions of June 23, 1930.