Cita APA

Robertson, S. 1., & Bertling, T. (2013). How to draw: Drawing and sketching objects and environments from your imagination (1. edition.). [USA]: Design Studio Press.

Citación estilo Chicago

Robertson, Scott 1966-, y Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments From Your Imagination. 1. edition. [USA]: Design Studio Press, 2013.

Cita MLA

Robertson, Scott 1966-, y Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments From Your Imagination. 1. edition. [USA]: Design Studio Press, 2013.