ISI. (1984). IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. ISI.
Chicago (17e ed.) BronvermeldingISI. IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. NEW DELHI: ISI, 1984.
MLA (9e ed.) BronvermeldingISI. IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. ISI, 1984.
Let op: Deze citaties zijn niet altijd 100% accuraat.