Symposium on the Biology of the seal 14 - 17 August 1972 Submitted by uapp.admin on Fri, 09/13/2013 - 15:30
Utilisation et conservation de la biosphère : actes de la Conférence intergouvernementale d'experts sur les bases scientifiques de l'utilisation rationnelle et de la conservation des ressources de la biosphère, Paris, 4-13 septembre 1968 Submitted by uapp.admin on Thu, 09/12/2013 - 21:52
Productivity and conservation in northern circumpolar lands : proceedings of a conference, Edmonton, Alberta, 15-17 October 1969 Submitted by uapp.admin on Thu, 09/12/2013 - 21:42
Project aqua : a source book of inland waters proposed for conservation Submitted by uapp.admin on Thu, 09/12/2013 - 20:37