APA Баримт

International Labour Office, Geneva. (1990). International Standard Classification of Occupations. UN.

Чикаго маягийн жагсаалт

International Labour Office, Geneva. International Standard Classification of Occupations. Geneva: UN, 1990.

MLA ишлэл

International Labour Office, Geneva. International Standard Classification of Occupations. UN, 1990.

Warning: These citations may not always be 100% accurate.