APA (7th ed.) Citation
Gordon, G. F. C., & Grimthorpe, E. B. (1946). Clockmaking, past and present: With which is incorporated the more important portions of Clocks, watches, and bells, by the late Lord Grimthorpe, relating to turret clocks and gravity escapements. Technical Press.
Chicago Style (17th ed.) Citation
Gordon, George Francis Carter, and Edmund Beckett Grimthorpe. Clockmaking, Past and Present: With Which Is Incorporated the More Important Portions of Clocks, Watches, and Bells, by the Late Lord Grimthorpe, Relating to Turret Clocks and Gravity Escapements. London: Technical Press, 1946.
MLA (9th ed.) Citation
Gordon, George Francis Carter, and Edmund Beckett Grimthorpe. Clockmaking, Past and Present: With Which Is Incorporated the More Important Portions of Clocks, Watches, and Bells, by the Late Lord Grimthorpe, Relating to Turret Clocks and Gravity Escapements. Technical Press, 1946.
Warning: These citations may not always be 100% accurate.