Sources and methods =
Sources et méthodes = Fuentes y métodos.

APA Citation

International Labour Organization. (1992). Sources and methods =: Sources et méthodes = Fuentes y métodos. Geneva: International Labour Office.

MLA Citation

International Labour Organization. Sources And Methods =: Sources Et Méthodes = Fuentes Y Métodos. Geneva: International Labour Office, 1992.

Warning: These citations may not always be complete (especially for serials).