TY  - BOOK
AU  - Thompson,Graham R..
TI  - Earth science and the environment
SN  - 0030754461
AV  - QE33 .T46 1993
PY  - 1993///
CY  - Florida
PB  - Saunders College Pub., Harcourt Brace Jovanovich College Publishers
KW  - Yer bilimleri
KW  - Çevre koruma
ER  -