APA (7th ed.) Citation

Aitchison, J. W., & Carter, H. (1994). A geography of the Welsh language: 1961 - 1991. Univ. of Wales Press.

Chicago Style (17th ed.) Citation

Aitchison, John W., and Harold Carter. A Geography of the Welsh Language: 1961 - 1991. Cardiff: Univ. of Wales Press, 1994.

MLA (9th ed.) Citation

Aitchison, John W., and Harold Carter. A Geography of the Welsh Language: 1961 - 1991. Univ. of Wales Press, 1994.