| 000 | 00440nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 230524s9999 xx 000 0 und d | ||
| 040 | _cUDSM | ||
| 050 | _aMATH QA621.B65 | ||
| 100 | 1 | 0 |
_aBoltyanskii, V. G. _eAuthor |
| 245 | 1 | 0 |
_aEnvelopes _c V. G. Boltyanskii |
| 260 |
_aOxford _bPergamon Press _c1964 |
||
| 300 |
_aix,76p. _c22cm. |
||
| 490 | _aPopular Lectures in Mathematics; v.12 | ||
| 650 | _aEnvelopes (Geometry) | ||
| 942 |
_2lcc _cBK |
||
| 999 |
_c67409 _d67409 |
||