Cita APA (7a ed.)

Goelker, K. (2011). GIMP 2.6 for Photographers: Image editing with Open source software. Rocky Nook.

Cita Chicago Style (17a ed.)

Goelker, Klaus. GIMP 2.6 for Photographers: Image Editing with Open Source Software. Santa Barbara, California: Rocky Nook, 2011.

Cita MLA (9a ed.)

Goelker, Klaus. GIMP 2.6 for Photographers: Image Editing with Open Source Software. Rocky Nook, 2011.