IUCN bulletin. 
 International Union for Conservation of Nature and Natural Resources bulletin 

 - Gland :  International Union for Conservation of Nature and Natural Resources. 
 - v. :  ill. 
 - Quarterly,  <July/Sept. 1983>-1995 
 - Quarterly,  1961-1971 Monthly,  1972-<Mar. 1980> Bimonthly,  <May/June 1981-> 
 - New ser. v. [1]-26, no. 4; Aug. 1961-Oct./Dec. 1995. 
<br/><br/>No. 1-20, Aug. 1961-July/Sept. 1966, constitute new ser. v. 1. 
<br/><br/><label>ISSN: </label>0020-9058 
 = IUCN bulletin 
 = IUCN bull. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation--Periodicals.<br/>Conservation of natural resources--Periodicals.