书名原文: Theory and problems of discrete mathematics. 书名原文:Theory ahd Problems of Discrete Mathematics Theory and problems of discrete mathematics Theory ahd Problems of Discrete Mathematics 书名原文: Theory and problems of real variabes. 书名原文:Theory and Problems of Electromagnetics 书名原文: Theory and problem of thermodynamics. 书名原文: Theory and problems of continuum mechanics 书名原文:Theory and problems of modern physics. 书名原文: Theory and problems of projective geometry.