(WS TAB-0-20 revised 9/72.) [Chart prepared to aid interpretation of cloud reports in International figure code.]
Notes:
(WS TAB-0-20 revised 9/72.) [Chart prepared to aid interpretation of cloud reports in International figure code.] * For Sale by Superintendent of Documents. Paper, 30c. (S/N 0318-00050).
Availability:
* For Sale by Superintendent of Documents. Paper, 30c. (S/N 0318-00050).