Connolly, J. P. (1927). The Tertiary mineralization of the northern Black Hills. Hipple Printing Company].
Lua i Stíl Chicago (17ú heag.)Connolly, Joseph Peter. The Tertiary Mineralization of the Northern Black Hills. Rapid City, S.D. [Pierre, S.D.: Hipple Printing Company], 1927.
Lua MLA (8ú heag.)Connolly, Joseph Peter. The Tertiary Mineralization of the Northern Black Hills. Hipple Printing Company], 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.