APA
Hachfeld B., . (2003). Ecology and utilisation of Harpagophytum procumbens (Devil's Claw) in Southern Africa: Results of the R+D project 80086005. Bonn: Bundesamt fur Naturschutz (BfN).
Chicago
Hachfeld Berit, . 2003. Ecology and utilisation of Harpagophytum procumbens (Devil's Claw) in Southern Africa: Results of the R+D project 80086005. Bonn: Bundesamt fur Naturschutz (BfN).
Harvard
Hachfeld B., . (2003). Ecology and utilisation of Harpagophytum procumbens (Devil's Claw) in Southern Africa: Results of the R+D project 80086005. Bonn: Bundesamt fur Naturschutz (BfN).
MLA
Hachfeld Berit, . Ecology and utilisation of Harpagophytum procumbens (Devil's Claw) in Southern Africa: Results of the R+D project 80086005. Bonn: Bundesamt fur Naturschutz (BfN). 2003.