Resultados de búsqueda - "Conservation"

Biology and conservation of sea turtles : proceedings of the World Conference on Sea Turtle Conservation, Washington, D.C., 26-30 November 1979 /

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The great whale book por Kelly, John, 1948-

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Grasslands of the world /

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Schumacher on energy speeches and writings of E.F. Schumacher por Schumacher, E. F. (Ernst Friedrich), 1911-1977

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Keeping the land alive soil erosion - its causes and cures por Kelley, Hubert W.

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Energy conservation sourcebook/

Materias: “…Energy conservation United States…”

Energy conservation measures proceedings of the international symposium, Kuwait, 6-8 February 1983

Materias: “…Energy conservation…”

Land use and water resources in temperate and tropical climates por Pereira, H. C. (Herbert Charles), 1913-

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Biophilia por Wilson, Edward Osborne, 1929-

Materias: “…Nature conservation…”

Caring for photographs : display, storage, restoration /

Materias: “…Photographs Conservation and restoration.…”

Energy : the facts of life / por Buckley, Andrew Robert

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The potential for energy efficiency in the fertilizer industry / por Heath, Roger, 1939-

Materias: “…Fertilizer industry Energy conservation.…”

Plonghman's folly / por Faulkner, Edward H.

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Soil water management /

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Soilerosion by water : some measures for its control on cultivated lands

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Elementary soil and water engineering por Schwab, Glenn Orville, 1914-

Materias: “…Soil conservation…”

Process energy conservation manual /

Materias: “…Chemical plants Energy conservation.…”

Irrigation scheduling for water & energy conservation in the 80's the proceedings of the Irrigation Scheduling Conference, December 14-15, 1981, the Palmer House, Chicago, Illinois

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Elements of soil conservation/ por Bennett, Hugh Hammond

Materias: “…Soil conservation…”

Energetics of agriculture and food production: with special emphasis on the Australian situation/ por Gifford, Roger M.

Materias: “…Agriculture Energy conservation Australia…”