Valnicek, Boris <br/><br/>
Pracovni Metody soudobe Astronomie / 
Boris Valnicek 
 - Orbis-Praha :  Knihovna Cheskoslov,  1958 
 - 58 p., 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Subjects--Index Terms: </label>Astronomy - Observation Methods 
<br/><br/><label>Dewey Class. No.: </label>A1501f173