APA (7th ed.) Citation

Robertson, S., & Bertling, T. (2013). How to draw: Drawing and sketching objects and environments from your imagination / by Scott Robertson with Thomas Bertling (First edition.). Titan.

Chicago Style (17th ed.) Citation

Robertson, Scott, and Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination / by Scott Robertson with Thomas Bertling. First edition. London: Titan, 2013.

MLA (8th ed.) Citation

Robertson, Scott, and Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination / by Scott Robertson with Thomas Bertling. First edition. Titan, 2013.

Warning: These citations may not always be 100% accurate.