Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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