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Norton-Griffiths, M.

Counting animals

1978 Norton-Griffiths, M. |

Serengeti : dynamics of an ecosystem

1979 Sinclair, A. R. E. | Norton-Griffiths, M. |

Evaluation of ground and aerial census work on vicuña in Pampa Galeras, Peru : results of a WWF/IUCN evaluation missions, 17 September-7 October 1980

1980 Norton-Griffiths, M. | Torres Santibañez, H. |
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