TY  - BOOK
AU  - HAY,John, x
AU  - x
TI  - The undiscovered country: x
SN  - x
U1  - 508/HAU 
PY  - 1981///
CY  - N.Y.
PB  - Norton.
KW  - Natural History
KW  - Man-Influence on nature
N1  - x
ER  -