Cita APA (7th ed.)
Heaton, J., & Groves, J. (2013). Introducing Wittgenstein. Icon Books.
Cita Chicago (17th ed.)
Heaton, John, i Judy Groves. Introducing Wittgenstein. Londres, Inglaterra: Icon Books, 2013.
Cita MLA (9th ed.)
Heaton, John, i Judy Groves. Introducing Wittgenstein. Icon Books, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.