Abdulla. (2013). Reachability Problems (1.). Springer Berlin Heidelberg.
Cita Chicago (17th ed.)Abdulla. Reachability Problems. 1. Springer Berlin Heidelberg, 2013.
Cita MLA (8th ed.)Abdulla. Reachability Problems. 1. Springer Berlin Heidelberg, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.