Cita APA (7th ed.)

Bjørner, D., & Oest, O. N. (1980). Towards a formal description of Ada. Springer-Verlag.

Cita Chicago (17th ed.)

Bjørner, D., i O. N. Oest. Towards a Formal Description of Ada. Berlin ; New York: Springer-Verlag, 1980.

Cita MLA (8th ed.)

Bjørner, D., i O. N. Oest. Towards a Formal Description of Ada. Springer-Verlag, 1980.