Cita APA (7a ed.)

Robles, G. (2013). Sketchbook Pro digital painting essentials: Create stunning professional grade artwork using Sketchbook Pro. Packt Publishing.

Cita Chicago Style (17a ed.)

Robles, Gil. Sketchbook Pro Digital Painting Essentials: Create Stunning Professional Grade Artwork Using Sketchbook Pro. Birmingham: Packt Publishing, 2013.

Cita MLA (8a ed.)

Robles, Gil. Sketchbook Pro Digital Painting Essentials: Create Stunning Professional Grade Artwork Using Sketchbook Pro. Packt Publishing, 2013.