TY  - BOOK
AU  - Clarke, Robert A.
AU  - Grigsby, Peter E.
AU  - Haddow, Jack F.
AU  - Clarke, Robert A.
TI  - Biology by inquiry: Course in experimental biology for secondary schools
SN  - 0-435-59173-8
U1  - 574 
PY  - 1971///
CY  - London
PB  - Heinemann Educational Books
ER  -