Zona sombria (geologia) (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Zona sombria (geologia)" in Portuguese language version.

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Williams, M.E. (2002). «Understanding Earth, 3rd edition, by Frank Press and Raymond Siever, W. H. Freeman & Co., New York, 2001. No. of pages: 620 (soft covers). ISBN 0 71674 117 2.». Geological Journal. 37 (4): 347–347. ISSN 0072-1050. doi:10.1002/gj.892

worldcat.org

Williams, M.E. (2002). «Understanding Earth, 3rd edition, by Frank Press and Raymond Siever, W. H. Freeman & Co., New York, 2001. No. of pages: 620 (soft covers). ISBN 0 71674 117 2.». Geological Journal. 37 (4): 347–347. ISSN 0072-1050. doi:10.1002/gj.892