TY - GEN AU - Galilei, Galileo. TI - Dialogue concerning the two chief world systems, Ptolemaic & Copernican AV - QB41 U1 - 520 PY - 1953/// CY - Berkeley, PB - University of California Press, KW - Astronomy KW - Early works to 1800 KW - Solar system N1 - Bibliographical references included in "Notes" (p. [467]-491) ER -