TY  - BOOK
AU  - Ploutz,Paul F.
TI  - The metric system: content and methods
SN  - 0675085381
AV  - QC93 .P57 1977
U1  - 530/.8 
PY  - 1977///
CY  - Columbus, Ohio
PB  - Merrill
KW  - Metric system
KW  - Programmed instruction
KW  - Local
ER  -