APA (7th ed.) Citation

Mackie, P. (2013). Sortal concepts and modality. University of Nottingham.

Chicago Style (17th ed.) Citation

Mackie, Penelope. Sortal Concepts and Modality. University of Nottingham, 2013.

MLA (9th ed.) Citation

Mackie, Penelope. Sortal Concepts and Modality. University of Nottingham, 2013.

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