Importante! Sobre el catálogo
| LDR | ·····cam##22·····#a#4500 |
| 001 | 000549 |
| 005 | 20120925105413.0 |
| 008 | 951204s1993####caua###g#b####000#0#eng## |
| 245 | 10 | $a Practical conic sections / $c J.W. Downs. |
| 260 | ## | $a Palo Alto, CA : $b D. Seymour Publications, $c c1993. |
| 300 | ## | $a xii, 100 p. : $b il. ; $c 25 cm. |
| 504 | ## | $a Incluye referencias bibliográficas (p. 100). |
| 020 | ## | $a 086651628X |
| 100 | 1# | $a Downs, J. W. |
| 084 | ## | $a 027.004 $2 z |
| 650 | #0 | $a Conic sections. |
| 653 | ## | $a Secciones cónicas. |
| 653 | ## | $a Telescopios. |
| 653 | ## | $a Leyes de Kepler. |
| 010 | ## | $a ###95230003# |
| 040 | ## | $a DLC $c DLC $d DLC $d AR-BaBIR |
| 050 | 00 | $a QA485 $b .D68 1993 |