TY  - BOOK
AU  - Buscombe, William
TI  - MK spectral classifications: fourth general catalogue
PY  - 1980///
CY  - Evanston
PB  - [s.l]
KW  - Astronomy and Astrophysics Thesaurus
KW  - Catalogue-MK spectral classifications
KW  - MK spectral classifications catalogue
ER  -