Treanor, P J <br/><br/>
Vatican observatory / 
Treanor, P J 
 -  Specola Vaticana, Citta Del Vaticano,  1969 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Universe; Descriptive astronomy
<br/><br/><label>Dewey Class. No.: </label>523.1 TRE-V