Dudley, Darle W.
Evolution of the gear art - 1st ed. - Washington American Gear Manufacturers Association 1969 - ix, 93 p. ill. 28 cm.
Includes bibliographies
Gearing
621.83 / DUD/1969
Evolution of the gear art - 1st ed. - Washington American Gear Manufacturers Association 1969 - ix, 93 p. ill. 28 cm.
Includes bibliographies
Gearing
621.83 / DUD/1969