Ngorongoro Conservation and Development Project : 1987 wet season sample ground census : preliminary report Author(s) Perkin, Scott
United Republic of Tanzania Ngorongoro conservation area : proposal for a conservation and development strategy
Ngorongoro conservation and development project. Annual report of activities, February 1987-February 1988 Author(s) Perkin, Scott
Project proposal summary : Ngorongoro conservation and development project : proposed six-month extension
Ngorongoro Conservation Area : aerial survey of livestock and wildlife, 23-25 October 1987 : preliminary results of SRF survey Author(s) Perkin, Scott Campbell, Kenneth L.
Ngorongoro Conservation and Development Project : 1987 dry season sample ground census : preliminary report Author(s) Perkin, Scott
Ngorongoro conservation and development project. Annual report of activities, February 1988-January 1989 Author(s) Perkin, Scott
