Robertson, S., & Bertling, T. How to draw: Drawing and sketching objects and environments from your imagination.
Citace podle Chicago (17th ed.)Robertson, Scott, a Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination.
Citace podle MLA (8th ed.)Robertson, Scott, a Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination.
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