TY  - BOOK
AU  - Clough,P.
AU  - Bennett,Jim
ED  - Hodder and Stoughton
TI  - Science skills: problems in earth, air and space 
SN  - 0340532718
U1  - 550 23
PY  - 1993///.
CY  - London: 
PB  - Hodder & Stoughton, 
KW  - Air
ER  -