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Mortgage debt for non-real-estate purposes
Gelb, Bernard A. - 1972
Persistent link: https://www.econbiz.de/10002401328
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U. S. energy price and consumption changes in the mid-1970's
Gelb, Bernard A. - 1978
Persistent link: https://www.econbiz.de/10002401421
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Energy use in mining : patterns and prospects
Gelb, Bernard A. - 1979
Persistent link: https://www.econbiz.de/10013542485