TY  - BOOK
AU  - Gannett,Samuel S.
TI  - Geographic tables and formulas
T2  - U.S. Geological survey. Bulletin 650
AV  - QE75 .B9 no. 650d
PY  - 1918///
CY  - Washington
PB  - Govt. print. off.
KW  - Mathematical geography
KW  - Tables
ER  -