Dyfyniad APA

Freeman, H. (1995). Industrial pollution prevention handbook. McGraw-Hill.

Dyfyniad Arddull Chicago

Freeman, Harry. Industrial Pollution Prevention Handbook. New York: McGraw-Hill, 1995.

Dyfyniad MLA

Freeman, Harry. Industrial Pollution Prevention Handbook. McGraw-Hill, 1995.

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