Official bulletin. Volume 81, Series B, Nos. 1-3, 1998. International Labour Office.
Chicago Edition CitationOfficial Bulletin. Volume 81, Series B, Nos. 1-3, 1998. Geneva: International Labour Office.
MLA Edition CitationOfficial Bulletin. Volume 81, Series B, Nos. 1-3, 1998. International Labour Office.
Warning: These citations may not always be 100% accurate.