书名原文: The theory of drama 书名原文:The theory of price 书名原文:The theory of beauty 书名原文:The theory of groups The theory of drama 并列题名：The theory of drama 书名原文:Marxism and the theory of praxis 书名原文:The theorem of pythagoras 书名原文: The Marxist theory of art. 书名原文:Aspects of the theory of syntax