APA (7th ed.) Citation

Hakkarainen, J., & Keinänen, M. (2023). Formal ontology. Cambridge University Press. https://doi.org/10.1017/9781009070126

Chicago Style (17th ed.) Citation

Hakkarainen, Jani, and Markku Keinänen. Formal Ontology. Cambridge, United Kingdom: Cambridge University Press, 2023. https://doi.org/10.1017/9781009070126.

MLA (9th ed.) Citation

Hakkarainen, Jani, and Markku Keinänen. Formal Ontology. Cambridge University Press, 2023. https://doi.org/10.1017/9781009070126.