TY  - GEN
AU  - Bondi, Hermann
AU  - Bullock, Alan
AU  - East, Gordon W
TI  - Treasures of the earth
T2  - Marshall cavendish learning system : geography
U1  - 553 TRE 
CY  - London, Marshall Cavendish Books
KW  - Earth/ earth - treasures/ mineral wealth
ER  -