Portland cement materials and industry in the United States,
Eckel, Edwin C. 1875-1941.
Portland cement materials and industry in the United States, by Edwin C, Eckel, with contributions by Ernest F. Burchard and others. - Washington, Govt. print off., 1913. - 401 p. maps (part fold.) diagrs. 24 cm. - U.S. Geological survey. Bulletin 522 .
Contains bibliographies.
gs 13000362
Portland cement.
QE75 / .B9 no. 522
Portland cement materials and industry in the United States, by Edwin C, Eckel, with contributions by Ernest F. Burchard and others. - Washington, Govt. print off., 1913. - 401 p. maps (part fold.) diagrs. 24 cm. - U.S. Geological survey. Bulletin 522 .
Contains bibliographies.
gs 13000362
Portland cement.
QE75 / .B9 no. 522