TY  - BOOK
AU  - Farmer,Walter A
AU  - Farrell,Margaret A.
TI  - Systematic instruction in science for middle and high school years
SN  - 0201024357 
U1  - 507.12 
PY  - 1980///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Science
N1  - Includes index; Bibliography: p. 348-349
ER  -