APA (7th ed.) Citation

Sykes, P. M. S. (1936). The quest for Cathay. A. & C. Black.

Chicago Style (17th ed.) Citation

Sykes, Percy Molesworth Sir. The Quest for Cathay. London: A. & C. Black, 1936.

MLA (9th ed.) Citation

Sykes, Percy Molesworth Sir. The Quest for Cathay. A. & C. Black, 1936.