Houghton, P. S.
Gears, spur, helical bevel and worm - 1st ed. - London Technical Press 1952 - xvi,391 p.
Gearing
621.833 / H8384
Gears, spur, helical bevel and worm - 1st ed. - London Technical Press 1952 - xvi,391 p.
Gearing
621.833 / H8384