Lua APA (7ú heag.)
U.S. National Committee for Rock Mechanics, National Research Council (U.S.). Panel on Borehole Stability, National Research Council (U.S.). Geotechnical Board, National Research Council (U.S.). Commission on Engineering and Technical Systems, ebrary, Inc, & Roegiers, J. (1993). Stability, failure, and measurements of boreholes and other circular openings. National Academy Press.
Lua i Stíl Chicago (17ú heag.)
U.S. National Committee for Rock Mechanics, National Research Council (U.S.). Panel on Borehole Stability, National Research Council (U.S.). Geotechnical Board, National Research Council (U.S.). Commission on Engineering and Technical Systems, Inc ebrary, agus Jean-Claude Roegiers. Stability, Failure, and Measurements of Boreholes and Other Circular Openings. Washington, DC: National Academy Press, 1993.
Lua MLA (9ú heag.)
U.S. National Committee for Rock Mechanics, et al. Stability, Failure, and Measurements of Boreholes and Other Circular Openings. National Academy Press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.