TY  - BOOK
AU  - Marvin,Charles F.
TI  - Instructions for obtaining and tabulating records from recording instruments
T2  - [U.S.] Weather bureau. Instruments division. Circular A
AV  - QC876 .M3 1913
PY  - 1913///
CY  - Washington
PB  - Govt. print. off.
KW  - Meteorology
KW  - Observers' manuals
N1  - At head of title: W. B. no. 509. U.S. Department of agriculture, Weather bureau
ER  -