Pannell, J. P. M. (1964). An illustrated history of civil engineering. London: Thames and Hudson.
Παραπομπή Chicago StylePannell, J. P. M. An Illustrated History of Civil Engineering. London: Thames and Hudson, 1964.
Παραπομπή MLAPannell, J. P. M. An Illustrated History of Civil Engineering. London: Thames and Hudson, 1964.
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