Robins, Seymour,
The armillary sphere /
by Seymour Robins.
- [10] pages : illustrations ; 23 cm + 1 model
Model of armillary sphere is housed in envelope and accompanies text.
0876639090 9780876639092
73076729
Planispheres.
Astronomical instruments.
Astronomical models.
Astronomical instruments.
Astronomical models.
Planispheres.
Astronomy Scientific instrument