Lua APA (7ú heag.)
Kramer, S. L. (1996). Geotechnical earthquake engineering. Pearson Education.
Lua i Stíl Chicago (17ú heag.)
Kramer, Steven L. Geotechnical Earthquake Engineering. Delhi: Pearson Education, 1996.
Lua MLA (9ú heag.)
Kramer, Steven L. Geotechnical Earthquake Engineering. Pearson Education, 1996.
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