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Krugman, Stanley L.

Biosphere reserves

1979 Franklin, Jerry F. | Krugman, Stanley L. |

Tree improvement and silvo-pastoral management in sahelian and north sudanian Africa : problems, needs and research proposals

Cossalter, C. (Christian) | Iyamabo, D. E. | Krugman, Stanley L. | Fugalli, O. |

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