TY - BOOK AU - Van Helden, Albert TI - Measuring the universe: cosmic dimensions from Aristarchus to Halley SN - 226848817 U1 - 523.1 PY - 1985/// CY - Chicago PB - The University of Chicago Press KW - Astronomy - History KW - Cosmological Distances KW - Aristarchus'S Comet KW - Halley'S Comet N1 - Bibliography p. 187-97 ER -