TY  - BOOK
AU  - Robins,Seymour
TI  - The armillary sphere
SN  - 0876639090
PY  - 1973///]
CY  - New York
PB  - Universe Books
KW  - Planispheres
KW  - Astronomical instruments
KW  - Astronomical models
KW  - fast
KW  - Astronomy
KW  - Scientific instrument
N1  - Model of armillary sphere is housed in envelope and accompanies text
ER  -