West, E.G.
Barrell polishing : theory, methods and plant employed - London Machinery Publishing Co. - 48 p., ill. - Machinery's Yellow Back series No.15 .
621.924 / W4
Barrell polishing : theory, methods and plant employed - London Machinery Publishing Co. - 48 p., ill. - Machinery's Yellow Back series No.15 .
621.924 / W4