APA (7th ed.) Citation

Forbes, G. (1989). Languages of possibility: An essay in philosophical logic (1. publ.). Blackwell.

Chicago Style (17th ed.) Citation

Forbes, Graeme. Languages of Possibility: An Essay in Philosophical Logic. 1. publ. Oxford u.a: Blackwell, 1989.

MLA (9th ed.) Citation

Forbes, Graeme. Languages of Possibility: An Essay in Philosophical Logic. 1. publ. Blackwell, 1989.

Warning: These citations may not always be 100% accurate.