TY  - BOOK
TI  - The Almagest / 
PY  - 1952///
CY  - Chicago : 
PB  - Encyclopaedia Britannica, 
N1  - Contiene además: On the revolutions of the Heavenly Spheres / Nicolaus Copernicus.-- Epitome of Copernican Astronomy; The harmonies of the world / Johannes Kepler
ER  -