| 000 | 003950000a22001330004500 | ||
|---|---|---|---|
| 008 | 140223b1973 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aENG | ||
| 080 | _a33,N68n L3-L7 | ||
| 082 | _a33,N68n L3-L7 | ||
| 245 | _aBritannica yearbook of science and the future 1974,1976,1977,1978. | ||
| 260 |
_aChicago _bEncyclopedia Britannica _c1973-1977 |
||
| 650 | _aENCYCLOPAEDIAS | ||
| 906 | _aBRITANNICA | ||
| 999 |
_c221699 _d221699 |
||