APA (7th ed.) Citation

Platt, S. H., & Clark, J. M. P. (1950). Modern trends in orthopaedics. Butterworths.

Chicago Style (17th ed.) Citation

Platt, Sir Harry, and John Mounsten P. Clark. Modern Trends in Orthopaedics. London: Butterworths, 1950.

MLA (9th ed.) Citation

Platt, Sir Harry, and John Mounsten P. Clark. Modern Trends in Orthopaedics. Butterworths, 1950.