Willy & Schehr, L. R. (2007). The third sex: Willy. Transl. and with an introd. and notes by Lawrence R. Schehr. Univ. of Illinois Press.

Willy and Lawrence R. Schehr. The Third Sex: Willy. Transl. and with an Introd. and Notes by Lawrence R. Schehr. Urbana, Ill. [u.a.]: Univ. of Illinois Press, 2007.

Willy and Lawrence R. Schehr. The Third Sex: Willy. Transl. and with an Introd. and Notes by Lawrence R. Schehr. Univ. of Illinois Press, 2007.