Cita APA (7th ed.)

Gottlob, G., Leone, N., & Veith, H. (1995). Second Order Logic and the Weak Exponential Hierarchies. Springer.

Cita Chicago (17th ed.)

Gottlob, G., N. Leone, i H. Veith. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.

Cita MLA (9th ed.)

Gottlob, G., et al. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.

Atenció: Aquestes cites poden no estar 100% correctes.