APA (7th ed.) Citation

Collins, J., Selina, H., & Appignanesi, R. (2006). Introducing Heidegger. Icon Books.

Chicago Style (17th ed.) Citation

Collins, Jeff, Howard Selina, and Richard Appignanesi. Introducing Heidegger. Cambridge: Icon Books, 2006.

MLA (9th ed.) Citation

Collins, Jeff, et al. Introducing Heidegger. Icon Books, 2006.