Castren, V. (1956). Natural and artificial reservoirs in Finland's grid- system. [Wien]: [s.n.].
Chicago Style CitationCastren, Viljo. Natural and Artificial Reservoirs in Finland's Grid- System. [Wien]: [s.n.], 1956.
MLA CitationCastren, Viljo. Natural and Artificial Reservoirs in Finland's Grid- System. [Wien]: [s.n.], 1956.
Warning: These citations may not always be 100% accurate.