Cita APA

International Labor Office & International Labor Office. (1975). The world coal-mining industry. Kraus Reprint.

Citación estilo Chicago

International Labor Office and International Labor Office. The World Coal-mining Industry. Nendeln: Kraus Reprint, 1975.

Cita MLA

International Labor Office and International Labor Office. The World Coal-mining Industry. Kraus Reprint, 1975.

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