APA (7th ed.) Citation

Dillon, M., & Chadwick, N. K. (1967). The Celtic realms. New American Library.

Chicago Style (17th ed.) Citation

Dillon, Myles, and Nora K. Chadwick. The Celtic Realms. [New York]: New American Library, 1967.

MLA (9th ed.) Citation

Dillon, Myles, and Nora K. Chadwick. The Celtic Realms. New American Library, 1967.