APA (7th ed.) Citation

Cotton, H., & Metcalf, B. L. (1955). Electrical equipment in mines. Newnes.

Chicago Style (17th ed.) Citation

Cotton, H., and Bernard Leslie Metcalf. Electrical Equipment in Mines. London: Newnes, 1955.

MLA (9th ed.) Citation

Cotton, H., and Bernard Leslie Metcalf. Electrical Equipment in Mines. Newnes, 1955.