APA (7th ed.) Citation

Ashton, T. S., & Sykes, J. (1929). The Coal Industry of the eighteenth century. Manchester Univ. Press.

Chicago Style (17th ed.) Citation

Ashton, T. S., and Joseph Sykes. The Coal Industry of the Eighteenth Century. Manchester: Manchester Univ. Press, 1929.

MLA (9th ed.) Citation

Ashton, T. S., and Joseph Sykes. The Coal Industry of the Eighteenth Century. Manchester Univ. Press, 1929.