TY  - BOOK
AU  - Sherlock,Robert Lionel
TI  - The Permo-Triassic formations : : a world review / 
U1  - 551.75 
PY  - 0000///1 948
CY  - London : 
PB  - Hutchinson's Scientific and Technical Publications, 
KW  - Geology, Stratigraphic
KW  - Permian
KW  - Triassic
KW  - Paleontology
N1  -  "List of works refered to" (p. 320-348)
ER  -