Styl cytowania APA

Schutte, K., & Crossley, J. (1977). Proof theory. Springer-Verlag.

Styl cytowania Chicago

Schutte, Kurt, i J.N Crossley. Proof Theory. New York: Springer-Verlag, 1977.

Styl cytowania MLA

Schutte, Kurt, i J.N Crossley. Proof Theory. Springer-Verlag, 1977.