Gaya APA
Holmes, N., DeNeve, R. (1985).
Designing Pictorial Symbols (1).
United States of America:
Watsol-Guptill Publications.
Gaya MLA
Holmes, Nigel., DeNeve, Rose.
"Designing Pictorial Symbols".
1
United States of America:
Watsol-Guptill Publications,
1985.
Desain Grafis.