APA (7th ed.) Citation

Coal Industry Leaflets. No. 3, The national minimum. London : Published by Coal Industry Publications.

Chicago Style (17th ed.) Citation

Coal Industry Leaflets. No. 3, The National Minimum. London : Published by Coal Industry Publications.

MLA (8th ed.) Citation

Coal Industry Leaflets. No. 3, The National Minimum. London : Published by Coal Industry Publications.

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