APA (7th ed.) Citation

Barfield, T. J. (1989). The perilous frontier: Nomadic empires and China. B. Blackwell.

Chicago Style (17th ed.) Citation

Barfield, Thomas J. The Perilous Frontier: Nomadic Empires and China. Cambridge, Mass: B. Blackwell, 1989.

MLA (9th ed.) Citation

Barfield, Thomas J. The Perilous Frontier: Nomadic Empires and China. B. Blackwell, 1989.

Warning: These citations may not always be 100% accurate.