Eleventh General Assembly [of the] International Union for Conservation of Nature and Natural Resources :   Banff, Alberta, Canada, 11-16 September 1972 : proceedings. 

 - Morges, Switzerland :   IUCN,   1972. 
 - 331 p. 
 - IUCN publications new series.   v. n. 40 E .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservação da natureza--Congressos.
<br/><br/><label>Dewey Class. No.: </label>333.72 
<br/><br/><label>Número de Chamada: </label>333.72  / I61