Lua APA (7ú heag.)

Verma, B. (2017). Engineering Geology and Rock Mechanics (04th.). Khanna Publisher.

Lua i Stíl Chicago (17ú heag.)

Verma, B.P. Engineering Geology and Rock Mechanics. 04th. New Delhi: Khanna Publisher, 2017.

Lua MLA (9ú heag.)

Verma, B.P. Engineering Geology and Rock Mechanics. 04th. Khanna Publisher, 2017.

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