UNESCO

Problems of threatened species

1970 Holloway, Colin W. |

A. Conservation in land-use planning : soil and water resources especially in mountain regions : wildlife resources and forestry. B. Effects of pollution on natural ecosystems. C. Some aspects of wildlife utilization and management. D. International Bi

1970 Elliott, Hugh F. I. |

Index to IUCN publications new series nos. 1-10

1968 Koenen, A. J. |

Conservation in tropical South East Asia : proceedings of the Conference on Conservation of Nature and Natural Resources in Tropical East Asia, Bangkok, Thailand, November 29 - December 4, 1965

1968 Talbot, Lee M. (Lee Merriam) | Talbot, Martha H. |

The ecology of man in the tropical environment : proceedings and papers

1964
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