Bird&Tobin2022
Bird, Alexander and Emma Tobin, "Natural Kinds", The Stanford Encyclopedia of Philosophy (Spring 2022 Edition), Edward N. Zalta & Uri Nodelman (eds.), URL = <https://plato.stanford.edu/archives/spr2022/entries/natural-kinds/>.
Bird, Alexander and Emma Tobin, "Natural Kinds", The Stanford Encyclopedia of Philosophy (Spring 2022 Edition), Edward N. Zalta & Uri Nodelman (eds.), URL = <https://plato.stanford.edu/archives/spr2022/entries/natural-kinds/>.