TY  - BOOK
ED  - U. S. Weather Bureau.
TI  - Codes for cloud forms and states of the sky according to the international system of classification: Prepared by the Weather bureau Committee on clouds and cloud forms
T2  - Its Circular S
AV  - QC921 .U6 1938
PY  - 1938///
CY  - Washington
PB  - U.S. Govt. print off.
KW  - Clouds
N1  - At head of title: W.B. no. 1249. U.S. Department of agriculture.   Weather bureau
ER  -