00301nam a2200109Ia 450000500170000000800410001708200150005810000230007324500450009626000420014130000080018320260225044754.0260224s9999||||xx |||||||||||||| ||und||  a516.83 SPI  aMurray R. Spiegel  0aTheeory and problems of Vector analysis   aNew York: McGraw-Hill Book Co. c1981  a224