Lua APA (7ú heag.)
Kliche, C. A. (1999). Rock slope stability. Society for Mining, Metallurgy, and Exploration.
Lua i Stíl Chicago (17ú heag.)
Kliche, Charles A. Rock Slope Stability. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 1999.
Lua MLA (9ú heag.)
Kliche, Charles A. Rock Slope Stability. Society for Mining, Metallurgy, and Exploration, 1999.
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