Watt, J. M., & Breyer-Brandwijk, M. G. The medicinal and poisonous plants of Southern and Eastern Africa: Being an account of their medicinal and other uses, chem. composition, pharmacolog. effects and toxicology in man and animal (2. ed.). Livingstone.
Chicago Style (17th ed.) CitationWatt, John M., and Maria G. Breyer-Brandwijk. The Medicinal and Poisonous Plants of Southern and Eastern Africa: Being an Account of Their Medicinal and Other Uses, Chem. Composition, Pharmacolog. Effects and Toxicology in Man and Animal. 2. ed. Edinburgh [u.a.]: Livingstone.
MLA (9th ed.) CitationWatt, John M., and Maria G. Breyer-Brandwijk. The Medicinal and Poisonous Plants of Southern and Eastern Africa: Being an Account of Their Medicinal and Other Uses, Chem. Composition, Pharmacolog. Effects and Toxicology in Man and Animal. 2. ed. Livingstone.