Importante! Sobre el catálogo
| LDR | ·····nam##22·····5##4500 |
| 001 | 002229 |
| 005 | 20101203111419.0 |
| 008 | 030000s1981####xx#####f#c###|0||#0#eng#d |
| 245 | 00 | $a MK spectral classifications: $b fifth general catalogue. |
| 260 | ## | $a Evanston : $b Northwestern University, $c 1981. |
| 300 | ## | $a 1 v. |
| 700 | 1# | $a Buscombe, William. $4 com |
| 653 | ## | $a Catálogos. |
| 653 | ## | $a Clasificación espectral. |
| 040 | ## | $a AR-BaBIR $b spa |