Harbison Walker Refractories Company (J. Spotts McDowell and W.F. Rochow) books & textbook
Modern Refractory Practice (with Special Reference to the Products of Harbison-Walker Refractories Company
Harbison-Walker Refractories Company (J. Spotts McDowell and W.F. Rochow)
Pittsburgh, Harbison-Walker Refractories Company, [ /1950T Hardcover