Home › Authors › Graham R. Isaac 👤 Graham R. Isaac 4 books Books by Graham R. Isaac Innsbrucker Beiträge zur Sprac Innsbrucker Beiträge zur Sprachwissenschaft, Bd. 127 2007 Place-names in Ptolemy's Geogr Place-names in Ptolemy's Geography 2004 Syntax of the Sentence in Old Syntax of the Sentence in Old Irish 1998 The verb in the Book of Aneirin 1996