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16701
Sustainable development as a formula to solve social and environmental problems: A critical look
by Rodríguez Cervantes, Silvia
Published 1992
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16702
The impact of organophosphate insecticides on birds
by Vega, Sileny
Published 1992
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16703
Industrialization of coffee and the environment
by Rodríguez, Jose J.
Published 1992
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16704
Pollution a nightmare of all
by Alfaro, María del Rosario
Published 1992
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16705
Response from Tectona grandis L.F. (Teak) to fertilization in Hojancha and Nandayure Guanacaste, Costa Rica
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16706
Preliminary growth charts of Gmelina arborea Roxb. Applicable to the dry Pacific, Costa Rica
by Mena Arias, Sergio
Published 1991
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16707
Height growth of Gmelina arborea Roxb. In the dry Pacific of Costa Rica
by Mena Arias, Sergio
Published 1991
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16708
Ecological and silvicultural considerations about oaks (Qercus sp.)
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16709
Thinning tests in plantations of Tectona grandis L.F. in Cobano de Puntarenas, Costa Rica
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16710
Rooting stakes of Bombacopsis quinatum (Jacq.) Dugand
by Alfaro M., Marielos
Published 1991
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16711
Thinning tests in Bombacopsis quinatum (Jacq.) Plantations in the Nicoya Peninsula, Costa Rica
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16712
How can one select the air to breathe?
by Alfaro, María del Rosario
Published 1991
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16713
A sea treasure
by Pacheco León, Freddy
Published 1991
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16714
The forestry development of the future
by Rodríguez, Dora
Published 1991
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16715
The environmental dimension in the training of university professionals
by Romero Sepúlveda, Rodia
Published 1991
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16716
The muddy feet of ECODES
by Mora Castellanos, Eduardo
Published 1991
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16717
Germination test of Diphysa robinioides Benth, under three types of coverage
by Mora, Ruben, Rodríguez, Dora
Published 1984
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16718
Alcohol from wood.Another alternative to the alcoholic problem?
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16719
Acidification of the medium
by Alfaro, María del Rosario
Published 1984
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16720
The importance of pesticides in Costa Rica during 1980-1981
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