APA (7th ed.) Citation

Rutherford, M., Mucina, L., & Powrie, L. (2006). Biomes and bioregions of Southern Africa.

Chicago Style (17th ed.) Citation

Rutherford, M., Ladislav Mucina, and L. Powrie. Biomes and Bioregions of Southern Africa. 2006.

MLA (9th ed.) Citation

Rutherford, M., et al. Biomes and Bioregions of Southern Africa. 2006.