McKinstry, Hugh Exton
Mining geology - 1st ed. - New York Prentice-Hall 1948 - xix, 680p. illus. 24 cm.
Mining engineering
622 / MCK/1962
Mining geology - 1st ed. - New York Prentice-Hall 1948 - xix, 680p. illus. 24 cm.
Mining engineering
622 / MCK/1962