00410nam a2200133Ia 4500008004100000082002500041100002100066245008600087260002400173300000900197490002700206600001500233650002800248140224s9999    xx            000 0 und d  a577.46:572(047.3) L7  aBaker, Paul, ed.  aHuman population problems in the biosphere; some research strategies and designs.  aParisbUnescoc1977  a82p.  aMAB Technical Notes; 3  aPaul Baker  aHuman ecology,Biosphere