TY  - BOOK
AU  - Hyde, Margaret O. (Margaret Oldroyd), 1917-
TI  - The earth in action
T2  - International library
AV  - QE 31 Hyd 
PY  - 1969///
CY  - London
PB  - Collins
KW  - GEOLOGY--STUDY AND TEACHING
KW  - EARTH
ER  -