APA引文

Robles, G. (2013). Sketchbook Pro digital painting essentials. Packt Publishing.

Chicago Style (17th ed.) Citation

Robles, Gil. Sketchbook Pro Digital Painting Essentials. Birmingham: Packt Publishing, 2013.

MLA引文

Robles, Gil. Sketchbook Pro Digital Painting Essentials. Packt Publishing, 2013.