Reference
Reference
- Mora, C., D. P. Tittensor, S. Adl, A. G. B. Simpson, and B. Worm. 2011. “How Many Species Are There on Earth and in the Ocean?” PLoS Biology 9 (8): e1001127. http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.1001127.