Roberts, J. L. (1982). Introduction to geological maps and structures. Pergamon Press.
Chicago Style (17th ed.) CitationRoberts, John Lenox. Introduction to Geological Maps and Structures. Oxford New York: Pergamon Press, 1982.
MLA citiranjeRoberts, John Lenox. Introduction to Geological Maps and Structures. Pergamon Press, 1982.
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