Dyfyniad APA

ISI. (1984). IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. ISI.

Dyfyniad Arddull Chicago

ISI. IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. NEW DELHI: ISI, 1984.

Dyfyniad MLA

ISI. IS: PURCHASERS DATA SHEET FOR COOLING TOWERS FOR PROCESS INDUSTRY IS : 8667-1977. ISI, 1984.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.