Resources,environment,and population present knowledge,future options
x x
Resources,environment,and population present knowledge,future options - x - Oxford Oxford University press 1991 - xii,423
x
019507050x
Population-Economics aspects congresses Population-Environmental aspects congresses
333.7/R434
Resources,environment,and population present knowledge,future options - x - Oxford Oxford University press 1991 - xii,423
x
019507050x
Population-Economics aspects congresses Population-Environmental aspects congresses
333.7/R434