Dyfyniad APA

Summer, W. (1971). Odour pollution of air: Causes and control. L. Hill.

Dyfyniad Arddull Chicago

Summer, W. Odour Pollution of Air: Causes and Control. London: L. Hill, 1971.

Dyfyniad MLA

Summer, W. Odour Pollution of Air: Causes and Control. L. Hill, 1971.

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