an introduction Tapp, B. A. creator Watkins, J. R. text Cambridge [England] New York Cambridge University Press c1990 monographic viii, 150 p. : ill. ; 24 cm. B.A. Tapp, J.R. Watkins. includes index Includes bibliographical references (p. 146-150) . Energy minerals Mines and mineral resources TN263.5 .T36 1988 333.79 0521302870 0521316162 (pbk.) 86011722 http://www.loc.gov/catdir/description/cam031/86011722.html http://www.loc.gov/catdir/enhancements/fy0907/86011722-t.html http://www.loc.gov/catdir/description/cam031/86011722.html http://www.loc.gov/catdir/enhancements/fy0907/86011722-t.html UOEL 000 20170720125929.0 4769463