Dyfyniad APA

(1973). Chemicals manpower in Europe. London: National Economic development.

Dyfyniad Arddull Chicago

Chemicals Manpower in Europe. London: National Economic development, 1973.

Dyfyniad MLA

Chemicals Manpower in Europe. London: National Economic development, 1973.

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