Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

Steel industry and trade -- Bibliography -- Union lists., Union catalogs -- Scotland., Iron industry and trade -- Bibliography -- Union lists.

Rolling-mills -- Bibliography -- Catalogs., Rolling-mills -- Equipment and supplies -- Bibliography -- Catalogs., Carnegie Library of Pittsburgh -- Catalogs., Rolls (Rolling-mills) -- Bibliography -- Catalogs.

Blast furnaces -- Bibliography -- Catalogs., Fly ash -- Bibliography -- Catalogs., Iron -- Metallurgy -- Bibliography -- Catalogs., Steel -- Metallurgy -- Bibliography -- Catalogs., Carnegie Library of Pittsburgh. Technology Department. -- Catalogs., Sinter (Metallurgy) -- Bibliography -- Catalogs.