Abastillas, Vivencio N.-- <br/><br/>Introduction to astronomy/ Abastillas, Vivencio N.--  -- Abastillas, Vivencio N.  Phoenix Publishing House  1996 <br/>vii, 176 p.:  ill.;  26 cm. <br/><br/> includes bibliographical references and indexes. <br/><br/><label>ISBN: </label>9710603817 <br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.<br/><br/><label>Dewey Class. No.: </label>Elem 520 Ab18 1996