553.1 Par O Park, Charles Frederick, 1903- Ore deposits [by] Charles F. Park and Roy A. MacDiarmid. San Francisco, W.H. Freeman [c1964] x, 475 p. ilus., mapas, diagrs., tablas. 24 cm (A series of books in geology) BibliografĂ­a al final de los capĂ­tulos.