(1994). A biological and human impact survey of the Lowland Forests, East Usambara Mountains, Tanzania: Cambridge-Tanzania rainforest project 1992-93. Birdlife International.
Chicago-Zitierstil (17. Ausg.)A Biological and Human Impact Survey of the Lowland Forests, East Usambara Mountains, Tanzania: Cambridge-Tanzania Rainforest Project 1992-93. Cambridge: Birdlife International, 1994.
MLA-Zitierstil (9. Ausg.)A Biological and Human Impact Survey of the Lowland Forests, East Usambara Mountains, Tanzania: Cambridge-Tanzania Rainforest Project 1992-93. Birdlife International, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.