APA (7th ed.) Citation

Durrant, W. R., Meacock, C. W., & Whitworth, R. E. (1973). Machine printing. Focal Press.

Chicago Style (17th ed.) Citation

Durrant, W. R., C. W. Meacock, and R. E. Whitworth. Machine Printing. London: Focal Press, 1973.

MLA (9th ed.) Citation

Durrant, W. R., et al. Machine Printing. Focal Press, 1973.