German chemical series
John Wiley & Sons
edited for rapid reading, with a summary of reading difficulties, a chemical German frequency list, and progressive page vocabularies and notes [by] John Theodore Fotos and John L. Bray
John Wiley & Sons c1941 German chemical series
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edited by John Theodore Fotos and R. Norris Shreve
John Wiley & Sons c1938 German chemical series
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