APA (7th ed.) Citation

(1931). Wages and hours of work in the coal-mining industry in 1929. International Labour Organization.

Chicago Style (17th ed.) Citation

Wages and Hours of Work in the Coal-mining Industry in 1929. International Labour Organization, 1931.

MLA (9th ed.) Citation

Wages and Hours of Work in the Coal-mining Industry in 1929. International Labour Organization, 1931.

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