1. Logisch-Philosophische Abhandlung [1921] Kritische Edition, ed. B. McGuinness and J. Schulte (Frankfurt: Suhrkamp, 1989); Tractatus Logico-Philosophicus [= TLP], tr. D.R Pears and B.R McGuinness (London: Routledge and Kegan Paul, 1961).
2. Notes on Logic [= NL, 1913], in NB 93–107.
3. Notes dictated to Moore in Norway [=NM, 1914], in NB 108–19.
4. Notebooks 1914–16 [= NB], ed. G.E.M. Anscombe and G.H. von Wright, tr. G.E. M. Anscombe (Oxford: Blackwell, rev. edn 1979).
5. Ludwig Wittgenstein: Cambridge Letters [= CL], ed. B. McGuinness and G.H. von Wright (Oxford: Blackwell, 1995).