Dyfyniad APA

(1928). Seasonal fluctuations in migration. Geneva: International Labour Office.

Dyfyniad Arddull Chicago

Seasonal Fluctuations in Migration. Geneva: International Labour Office, 1928.

Dyfyniad MLA

Seasonal Fluctuations in Migration. Geneva: International Labour Office, 1928.

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