APA (7th ed.) Citation

Russell, P. (1995). An introduction to the Celtic languages (1. publ.). Longman.

Chicago Style (17th ed.) Citation

Russell, Paul. An Introduction to the Celtic Languages. 1. publ. London [u.a.]: Longman, 1995.

MLA (9th ed.) Citation

Russell, Paul. An Introduction to the Celtic Languages. 1. publ. Longman, 1995.

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