APA (7th ed.) Citation

Brass, P. R. (1985). Ethnic groups and the state. Croom Helm.

Chicago Style (17th ed.) Citation

Brass, Paul R. Ethnic Groups and the State. London [etc.]: Croom Helm, 1985.

MLA (9th ed.) Citation

Brass, Paul R. Ethnic Groups and the State. Croom Helm, 1985.

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