Bessa, J., & Hesselbo, S. (1997). Gamma-ray character and correlation of the Lower Lias, SW Britain.
Lua i Stíl Chicago (17ú heag.)Bessa, J., agus S. Hesselbo. Gamma-ray Character and Correlation of the Lower Lias, SW Britain. 1997.
Lua MLA (9ú heag.)Bessa, J., agus S. Hesselbo. Gamma-ray Character and Correlation of the Lower Lias, SW Britain. 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.