Conservation des ressources naturelles dans l'Aïr-Ténéré, République du Niger : rapport annuel 1987-1988 (traduction faite du texte original anglais)
1988
Newby, John E. |
WWF International
Ngorongoro Conservation Area : aerial survey of livestock and wildlife, 23-25 October 1987 : preliminary results of SRF survey
1988
Perkin, Scott |
Campbell, Kenneth L. |
Marine turtles in Baluchistan : report on an aerial survey, 9-11 September 1988 with notes on wetland sites and a proposed marine turtle conservation project
1989
Groombridge, Brian |
Elephant action plan
1989
The reintroduction of addax (Addax nasomaculatus) into the Aïr and Ténéré national nature reserve, Republic of Niger. An outline project proposal
1989
Dixon, Alexandra |
Knowles, John |
Newby, John E. |