TY  - BOOK
ED  - Scientific American
TI  - Scientific American resource library: readings in the earth sciences 
SN  - 0716709880 (set) :
AV  - QE1 .S1957
U1  - 551 23
PY  - 1969///-1973]
CY  - San Francisco
PB  - W.H. Freeman
KW  - Earth sciences
KW  - Collected works
N1  - Bibliografía
ER  -