HEA|  |00491nam0 2200193   45  
000|  |143483
001|  |97001955
005|  |970917105207.0
011|  |▼a0097-9015
092|  |▼aCN▼b710B0157
100|  |▼a19970522b19711974m  y1engy0120    ba
101|0 |▼aeng
102|  |▼aUSA
110|  |▼aaua    0uu0
200|10|▼aGovernment reports index
207|  |▼aV.71(1971)-v.74(1974)
210|  |▼aSpringfield▼cNational Techni-
   |  |cal Information Science
541|1 |▼a(美)政府报告年度索引
905|  |▼a801▼d/▼e▼f1