APA (7th ed.) Citation

Prescott, J. R. V. (1978). Boundaries and frontiers. Croom Helm [u.a.].

Chicago Style (17th ed.) Citation

Prescott, John R. V. Boundaries and Frontiers. London: Croom Helm [u.a.], 1978.

MLA (9th ed.) Citation

Prescott, John R. V. Boundaries and Frontiers. Croom Helm [u.a.], 1978.