Year book of the international council of scientific unions 1965 
/ International Council of Scientific Unions 
 - Italy:   ICSU Secretariat,   1965 
 - 138p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>R 5(061.1)(100)(058)