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1 ocm07674143
2 WBAN manual of surface / U S Dept of Commerce Weather Bureau
3 United States Weather Bureau
4 United States Weather Bureau Handbooks manuals etc
4 Clouds Instruments
4 Cloudiness Measurement Handbooks manuals etc
4 Meteorological instruments
4 Visibility Measurement Handbooks manuals etc
4 Winds Measurement Handbooks manuals etc
4 in aeronautics United States Observers' manuals
4 Airways
4 United States Observers' manuals
4 Atmospheric pressure Measurement Handbooks manuals etc
4 Atmospheric temperature Measurement Handbooks manuals etc
4 Precipitation Measurement Handbooks manuals etc
6 QC983 .C57 no.N 6th ed. Rev 1951
6 QC983 .C57 no.N 6th ed. Rev. 1951 AWS
6 QC983 .C57 no.N 6th ed. Rev. 1951 AWS
6 QC983 .C57 no.N 6th ed. Rev. 1951 WB a
7 no.n-6th.ed-Rev1951-WBadd
10 D:\CIRC_004\CIRC-0116.PDF