Pieters, H.A.J.
Wet purification of coal gas and similar gases by the Staatsmijnen-Otto-process - Elsevier publishing company Inc. 1946 - 55p.
Coal gas purification
662.764.074
Wet purification of coal gas and similar gases by the Staatsmijnen-Otto-process - Elsevier publishing company Inc. 1946 - 55p.
Coal gas purification
662.764.074