Watkins, G., & Buchanan, R. A. (1975). Man and the steam engine / (by) G. Watkins and R.A. Buchanan. Priory Press.
Chicago Style (17th ed.) CitationWatkins, George, and R. A. Buchanan. Man and the Steam Engine / (by) G. Watkins and R.A. Buchanan. London: Priory Press, 1975.
MLA (9th ed.) CitationWatkins, George, and R. A. Buchanan. Man and the Steam Engine / (by) G. Watkins and R.A. Buchanan. Priory Press, 1975.
Warning: These citations may not always be 100% accurate.