TY  - BOOK
AU  - LONGWELL , CHESTER R
AU  - FLINT, RICHARD FOSTER
TI  - PHYSICAL GEOLOGY
U1  - J5;1 
PY  - 1955///
CY  - NEW YORK
PB  - JOHN WILLEY AND SONS
KW  -  PHYSICAL GEOLOGY
KW  - AGRICULTURE
ER  -