Cita APA (7a ed.)

Berglund, T., & McCullough, M. (2012). Berglund and McCullough on Mastering Grails 101 (1st edition.). O'Reilly Media, Inc.

Cita Chicago Style (17a ed.)

Berglund, Tim, y Matthew McCullough. Berglund and McCullough on Mastering Grails 101. 1st edition. O'Reilly Media, Inc, 2012.

Cita MLA (9a ed.)

Berglund, Tim, y Matthew McCullough. Berglund and McCullough on Mastering Grails 101. 1st edition. O'Reilly Media, Inc, 2012.