Khalid,Tameem Temporal Record Of Tropospheric Fromaldehyde Column Densities Over Pakistan By Using Satellite Observations Tameem Khalid - Islamabad IESE (SCEE) NUST 2013. - 81 p. HB. - MS Environmental Science . Thesis MS ES Subjects--Topical Terms: Environmental Science LC Class. No.: 363.7 KHA Dewey Class. No.: 363.7 KHA