APA (7th ed.) Citation

Keen, W. J. (1928). The North West Frontier Province and the war. Govt. Print. and Stationery.

Chicago Style (17th ed.) Citation

Keen, W. J. The North West Frontier Province and the War. Peshawar: Govt. Print. and Stationery, 1928.

MLA (8th ed.) Citation

Keen, W. J. The North West Frontier Province and the War. Govt. Print. and Stationery, 1928.