| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c29902 _d29902 |
||
| 008 | 181009b xxu||||| |||| 00| 0 eng d | ||
| 020 | _a9780716605910 | ||
| 050 | _aREF Q 9 .S35 1991 | ||
| 245 |
_a1991 Science Year/ _bThe world Book Annual Science Supplement: A review of Science and Technology During the 1990 School Year |
||
| 260 |
_aLondon: _bWorld Book, Inc. _c1991. |
||
| 300 |
_a400p. : _bill. ; _c20 cm |
||
| 500 | _aincludes index. | ||
| 650 | _aScience. | ||
| 942 |
_2lcc _cREF_BOOK _hREF Q 9 .S35 1991 |
||