Brown. (2013). The Definitive Guide to Grails 2 (1.). Apress.
Cita Chicago (17th ed.)Brown. The Definitive Guide to Grails 2. 1. Apress, 2013.
Cita MLA (8th ed.)Brown. The Definitive Guide to Grails 2. 1. Apress, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.