MAHAPATRA, G. B. (2018). Text book of physical geology. CBS Publishers.
Lua i Stíl Chicago (17ú heag.)MAHAPATRA, Girija Bhusan. Text Book of Physical Geology. CBS Publishers, 2018.
Lua MLA (9ú heag.)MAHAPATRA, Girija Bhusan. Text Book of Physical Geology. CBS Publishers, 2018.
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