APA

International Labour Organisation (9a. : 1975 : Ginebra S., .Working environment in the iron and steel industry. Geneva ; International Labour Office: .

Chicago

International Labour Organisation (9a. : 1975 : Ginebra Suiza), .Working environment in the iron and steel industry. Geneva ; International Labour Office: .

Harvard

International Labour Organisation (9a. : 1975 : Ginebra S., .Working environment in the iron and steel industry. Geneva ; International Labour Office: .

MLA

International Labour Organisation (9a. : 1975 : Ginebra Suiza), .Geneva ; International Labour Office: . .