Cathedral, forge, and waterwheel
Gies, Frances.
Cathedral, forge, and waterwheel: technology and invention in the Middle Ages /
Frances & Joseph Gies
. - New York : HarperCollins Publishers, 1994
. - 357 p. ill. 22 cm.
К.: Бібліогр. : с. 329-343, Покажчик
0-06-016590-1
К.: Бібліогр. : с. 329-343, Покажчик
0-06-016590-1