Error:URL using bad/illegal format or missing URL Thecarbonisotopiccompositionisexpressedascwhichisdenedas:as:13c12csample13c12cvpdb]13c12cvpdb1000.thestandarddeningtheciso Topescaleisvpdb(viennapeedeebelemnite).theisotopiccompositiono - PowerPoint Presentations and PDF Documents