| RGO Archives/RGO 21/1 contains: |
|---|
| <-- See earlier |
|---|
| 23 |
R.O. Bulletins, No. 26 |
| 24 |
R.O. Bulletins, No. 27 |
| 25 |
R.O. Bulletins, No. 28 |
| 26 |
R.O. Bulletins, No. 29 |
| 27 |
R.O. Bulletins, No. 30 |
| 28 |
R.O. Bulletins, No. 31 |
| 29 |
R.O. Bulletins, No. 32 |
| 30 |
R.O. Bulletins, No. 33 |
| 31 |
R.O. Bulletins, No. 34 |
| 32 |
R.O. Bulletins, No. 35 |
| 33 |
R.O. Bulletins, No. 36 |
| See later --> |
|---|
|
Royal Observatory Bulletins
| Title |
R.O. Bulletins, No. 31 |
| Reference |
RGO 21/1/28 |
| Covering Dates |
1961 |
| Extent and Medium |
1 volume |
|
| Content and context |
'Royal Observatory Bulletins', Number 31, 'The Period-Colour Relation for Contact Binaries' by O.J. Eggen. |
| No further on-line information. |
|
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