Cita APA (7a ed.)

Richards, J. (2013). Freehand drawing and discovery: Urban sketching and concept drawing for designers. Wiley.

Cita Chicago Style (17a ed.)

Richards, James. Freehand Drawing and Discovery: Urban Sketching and Concept Drawing for Designers. Hoboken, New Jersey: Wiley, 2013.

Cita MLA (8a ed.)

Richards, James. Freehand Drawing and Discovery: Urban Sketching and Concept Drawing for Designers. Wiley, 2013.