TY  - BOOK
AU  - Petterssen, Sverre 
TI  - Weather analysis and forecasting : a textbook on synoptic meteorology
PY  - 1940///
CY  - New York
PB  - McGraw Hill 
KW  - Air-mass CharacteristicsProduction And Transformation Of Air MassesWeatherWaves And Cyclones
ER  -