APA
Roberts David G, Bally A W, . (2012). Regional Geology and Tectonics: Principles of Geologic Analysis Volume 1A. Amsterdam: Elsevier.
Chicago
Roberts David G, Bally A W, . 2012. Regional Geology and Tectonics: Principles of Geologic Analysis Volume 1A. Amsterdam: Elsevier.
Harvard
Roberts David G, Bally A W, . (2012). Regional Geology and Tectonics: Principles of Geologic Analysis Volume 1A. Amsterdam: Elsevier.
MLA
Roberts David G, Bally A W, . Regional Geology and Tectonics: Principles of Geologic Analysis Volume 1A. Amsterdam: Elsevier. 2012.