Lua APA (7ú heag.)

Das Braja M., S. (2019). Principles of Geotechnical Engineering (9th.). Cengage Publication.

Lua i Stíl Chicago (17ú heag.)

Das Braja M., Sobham. Principles of Geotechnical Engineering. 9th. New Delhi: Cengage Publication, 2019.

Lua MLA (9ú heag.)

Das Braja M., Sobham. Principles of Geotechnical Engineering. 9th. Cengage Publication, 2019.

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