00302nam a2200109Ia 4500082002200000100002000022245007200042260005200114300001600166500000500182700000500187  a333.8973bL263.NR  aLandsberg, H. H  aNatural resources for U. S. growth; a look ahead to the year 2000b  aBaltimorebJohns Hopkins University Pressc1964  aviii, 260p.  a  a