<![CDATA[Comentarios al libro: MOLDING SANDS OF MICHIGAN AND THEIR USES, BY GEORGE GRANGER BROWN ... PREPARED UNDER THE DIRECTION OF R. A. SMITH, STATE GEOLOGIST IN COOPERATION WITH THE DEPARTMENT OF CHEMICAL ENGINEERING. UNIVERSITY OF MICHIGAN]]>

<![CDATA[Comentarios al libro: MOLDING SANDS OF MICHIGAN AND THEIR USES, BY GEORGE GRANGER BROWN ... PREPARED UNDER THE DIRECTION OF R. A. SMITH, STATE GEOLOGIST IN COOPERATION WITH THE DEPARTMENT OF CHEMICAL ENGINEERING. UNIVERSITY OF MICHIGAN]]> Thu, 01 Oct 2026 18:28:08 +0000 es Copyright 202 6BiblioEteca Technologies SL