APA (7th ed.) Citation

National Coal Board. (1964). The underground gasification of coal. Pitman.

Chicago Style (17th ed.) Citation

National Coal Board. The Underground Gasification of Coal. Pitman, 1964.

MLA (9th ed.) Citation

National Coal Board. The Underground Gasification of Coal. Pitman, 1964.

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