Lua APA (7ú heag.)
ebrary, Inc, Abbie, M., & Bedford, J. S. (2009). Rock mechanics: New research. Nova Science Publishers.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, M. Abbie, agus J. S. Bedford. Rock Mechanics: New Research. New York: Nova Science Publishers, 2009.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Rock Mechanics: New Research. Nova Science Publishers, 2009.
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