TY  - BOOK
AU  - Gregory , R.A..
AU  - Simmons, A.T..
TI  - A Manual of Elementary Science
U1  - 500 
PY  - 1901///
CY  - New York
PB  - Macmillan and co
KW  - Elementary Science
KW  - G-Mathematics
N1  - Index
ER  -