APA

Sommerhalder R., Westrhenen S. C. v. & Westrhenen S. C. v. (1988). The theory of computability. Wokingham [u.a.]: Addison-Wesley.

Chicago

Sommerhalder Rudolph, Westrhenen S Christiaan van and Westrhenen S Christiaan van. 1988. The theory of computability. Wokingham [u.a.]: Addison-Wesley.

Harvard

Sommerhalder R., Westrhenen S. C. v. and Westrhenen S. C. v. (1988). The theory of computability. Wokingham [u.a.]: Addison-Wesley.

MLA

Sommerhalder Rudolph, Westrhenen S Christiaan van and Westrhenen S Christiaan van. The theory of computability. Wokingham [u.a.]: Addison-Wesley. 1988.