Aston, Elaine Theatre as sign-system : a semiotics of text and performance / Elaine Aston and George Savona - London ; New York : Routledge, 1991 - 203 p. : taules ; 23 cm 792:003AST Índex. Bibliografia ISBN: 0415049318 0415049326 (pbk.) LCCN: 7656 Universal Decimal Class. No.: 792.01:003