Symposium No.65 held in Torun, Poland, 1973 <br/><br/>
Exploration of the planetary system   
ed. by A. Woszczyk, C. Iwaniszewska 
 - Holland  D.Reidel Publishing Company  1974 
 - xii, 564p. 
 - International astronomical union symposium No.65 .
<br/><br/><label>ISBN: </label>9027704503 
<br/><br/><label>Dewey Class. No.: </label>521.54  / N74