APA ציטוט

Great Britain. National Coal Board. Mining Dept. (1973). Control of harmful dust in coal mines. National Coal Board, Mining Department.

Chicago Style (17th ed.) Citation

Great Britain. National Coal Board. Mining Dept. Control of Harmful Dust in Coal Mines. London: National Coal Board, Mining Department, 1973.

ציטוט MLA

Great Britain. National Coal Board. Mining Dept. Control of Harmful Dust in Coal Mines. National Coal Board, Mining Department, 1973.