Dyfyniad APA

International Laour Office. (1987). Statistical sources and methods (2nd ed.). International Labour Office.

Dyfyniad Arddull Chicago

International Laour Office. Statistical Sources and Methods. 2nd ed. Geneva: International Labour Office, 1987.

Dyfyniad MLA

International Laour Office. Statistical Sources and Methods. 2nd ed. International Labour Office, 1987.

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