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Lua i Stíl Chicago (17ú heag.)ANNADURAI R.,NAGALAKSHMI R. TEXTBOOK OF ENGINEERING GEOLOGY. ANE BOOKS, new delhi, 2016.
Lua MLA (9ú heag.)ANNADURAI R.,NAGALAKSHMI R. TEXTBOOK OF ENGINEERING GEOLOGY. ANE BOOKS, new delhi, 2016.
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