TY  - BOOK
AU  - Stone, R. H.
TI  - New biology for tropical schools 
SN  - 978 0 582 60643 2
U1  - 574 076 STO 
PY  - 1981///
CY  - Essex 
PB  -  Longman
KW  - BIOLOGY STUDY AND TEACHING SECONDARY
ER  -