References
- Khalidi, M. A. 2013. Natural Categories and Human Kinds: Classification in the Natural and Social Sciences. Cambridge: Cambridge University Press.
- LaPorte, J. 2004. Natural Kinds and Conceptual Change. Cambridge: Cambridge University Press.
- Magnus, P. D. 2005. “Background Theories and Total Science.” Philosophy of Science 72: 1064–1075. doi: 10.1086/508957