Cita APA (7th ed.)

SpringerLink (Online service), Launchbury, J., & Rocha, R. (2011). Practical aspects of declarative languages: 13th International Symposium, PADL 2011, Austin, TX, USA, January 24-25, 2011. Proceedings. Springer Berlin.

Cita Chicago (17th ed.)

SpringerLink (Online service), John Launchbury, i Ricardo Rocha. Practical Aspects of Declarative Languages: 13th International Symposium, PADL 2011, Austin, TX, USA, January 24-25, 2011. Proceedings. Berlin, Heidelberg: Springer Berlin, 2011.

Cita MLA (8th ed.)

SpringerLink (Online service), et al. Practical Aspects of Declarative Languages: 13th International Symposium, PADL 2011, Austin, TX, USA, January 24-25, 2011. Proceedings. Springer Berlin, 2011.