Spivakovsky, A.
Conveyors and related equipment - 1st ed. - Moscow Peace Publishers n.d. - 444 p. ill.
Equipment : conveyors
621.867 / SPI/n.d.
Conveyors and related equipment - 1st ed. - Moscow Peace Publishers n.d. - 444 p. ill.
Equipment : conveyors
621.867 / SPI/n.d.