Robbins, Robert R. <br/><br/>Discovering astronomy/ R. Robert Robbins.--  -- Second edition.  -- New York:  John Wiley & Sons, Inc.,  1988. <br/>xv.,  col.: ill.;  28. <br/><br/> Includes bibliographies and index. <br/><br/><label>ISBN: </label>0471832111 <br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/><br/><label>Dewey Class. No.: </label>HS Cir 520 R538 1988