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1. Losing ground :   Publication: Oxford: Pergamon P., 1978 . 223p. Date:1978 Availability: Copies available: Turkeyen Campus Social Sciences [HD9000.5 E75] (2), Actions: Add to cart
2. Planting for the future :   Publication: Washington, D.C. : Worldwatch Institute, 1979 . 64 p. - Date:1979 Availability: No items available: Withdrawn (1), Actions: Add to cart