Calfree, R.F. NOAA technical report ERL 211-WPL 15 : a note on terminologies used in gaseous absorption processes/ R.F. Calfree - Washington,D.C. : United States Department of Commerce, 1971 - 7 p. ; ill. ; 28 cm. Subjects--Topical Terms: ClimatologyClimate Dewey Class. No.: 551.6