TY  - BOOK
AU  - Ptolemy
AU  - Copernicus, Nicolaus
AU  - Kepler, Johannes
AU  - Hutchins, Robert Maynard (Series Ed.)
TI  - Almagest
U1  - 520 
PY  - 1952///
CY  - Chicago
PB  - Encyclopaedia Britannica
KW  - Astronomy--Early works to 1800
KW  - Mathematics, Greek
N1  - Biographical note, abbreviations, bibliography, appendices
ER  -