Puhalla, D. (2011). Design elements, form & space: A graphic style manual for understanding structure and design. Rockport Publishers.
Chicago-viite (17. p.)Puhalla, Dennis. Design Elements, Form & Space: A Graphic Style Manual for Understanding Structure and Design. Beverly, Mass.: Rockport Publishers, 2011.
MLA-viite (9. p.)Puhalla, Dennis. Design Elements, Form & Space: A Graphic Style Manual for Understanding Structure and Design. Rockport Publishers, 2011.
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