Books by International gas congress (1915 : San Francisco):
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International Gas Congress (1915 : San Francisco): Proceedings of the International Gas Congress held at San Francisco, California, September 27-October 2, 1915 ([Press of the Chemical Publishing Company], 1915) (page images at HathiTrust)- International gas congress (1915 : San Francisco): Proceedings of the International gas congress held at San Francisco, California, September 27-October 2, 1915. (Press of the Chemical publishing company, 1916), also by George G. Ramsdell (page images at HathiTrust)
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