Cita APA (7a ed.)

Rocher, G. K., & Brown, J. (2009). The definitive guide to Grails (2nd ed.). Apress ; Distributed to the book trade worldwide by Springer-Verlag.

Cita Chicago Style (17a ed.)

Rocher, Graeme Keith, y Jeff Brown. The Definitive Guide to Grails. 2nd ed. Berkeley, CA : New York: Apress ; Distributed to the book trade worldwide by Springer-Verlag, 2009.

Cita MLA (9a ed.)

Rocher, Graeme Keith, y Jeff Brown. The Definitive Guide to Grails. 2nd ed. Apress ; Distributed to the book trade worldwide by Springer-Verlag, 2009.