Dyfyniad APA

Hopkins, R. Handbook of industrial welfare. Sir Isaac pitman &sons limited.

Dyfyniad Arddull Chicago

Hopkins, R.R. Handbook of Industrial Welfare. London: Sir Isaac pitman &sons limited.

Dyfyniad MLA

Hopkins, R.R. Handbook of Industrial Welfare. Sir Isaac pitman &sons limited.

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