Man and the Biosphere. Development of arid and semi-arid lands: obstacles and prospects. MAB Technical Notes 6. Pub. Unesco. 1977
pp, 42. Pbk. A vg copy.
£5.00 [Ref: 28912]Man and the Biosphere. Development of arid and semi-arid lands: obstacles and prospects. MAB Technical Notes 6. Pub. Unesco. 1977
pp, 42. Pbk. A vg copy.
£5.00 [Ref: 28912]