APA (7. basım) Alıntı

Robertson, S., & Bertling, T. How to draw: Drawing and sketching objects and environments from your imagination.

Chicago Style (17. basım) Atıf

Robertson, Scott, ve Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination.

MLA (8th ed.) Atıf

Robertson, Scott, ve Thomas Bertling. How to Draw: Drawing and Sketching Objects and Environments from Your Imagination.