APA (7th ed.) Citation

Grenfell, D. R. (1947). Coal / by D.R. Grenfell. Gollancz.

Chicago Style (17th ed.) Citation

Grenfell, D. R. Coal / by D.R. Grenfell. London: Gollancz, 1947.

MLA (9th ed.) Citation

Grenfell, D. R. Coal / by D.R. Grenfell. Gollancz, 1947.

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