Erdi, P. (2008). Complexity explained. Springer.
Cita Chicago (17th ed.)Erdi, Péter. Complexity Explained. Berlín: Springer, 2008.
Cita MLA (9th ed.)Erdi, Péter. Complexity Explained. Springer, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.