TY - BOOK AU - Burnham,Robert TI - Advanced skywatching SN - 0783549415 AV - QB64 .A38 1997 U1 - 520 PY - 1997/// CY - Alexandria, Va. PB - Time-Life Books KW - Astronomy KW - Observers' manuals N1 - Includes bibliographical references and index UR - http://www.naturecompany.com ER -