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Mckee, Brian J. | Taylor & Francis Verlag | 1998

Historic American Covered Bridges

McKee, B.J. | Online Contents | 1998

Historic covered bridges

Powell, W.S. | Engineering Index Backfile | 1939

Germany's remaining historic wooden covered bridges

Caston, Philip S. C. | TIBKAT | 2010

Historic American Bridges

Lichtenstein, A. G. / McCahon, M. E. / International Association for Bridge and Structural Engineering | British Library Conference Proceedings | 1993