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