APA (7th ed.) Citation

Gibson, J., & Gregory, D. H. (1971). Carbonisation of coal / (by) J. Gibson, D.H. Gregory. Mills and Boon.

Chicago Style (17th ed.) Citation

Gibson, J., and Douglas Haig Gregory. Carbonisation of Coal / (by) J. Gibson, D.H. Gregory. London: Mills and Boon, 1971.

MLA (9th ed.) Citation

Gibson, J., and Douglas Haig Gregory. Carbonisation of Coal / (by) J. Gibson, D.H. Gregory. Mills and Boon, 1971.

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