Davis, W.O.
Gears : for small mechanisms - 2d ed. - London N.A.G. Press 1970 - 344 p., ill.
Gears
621.833 / D3
Gears : for small mechanisms - 2d ed. - London N.A.G. Press 1970 - 344 p., ill.
Gears
621.833 / D3
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