Gaya APA

Howard, R. (1992). The illustrators bible : the complete sourcebook of tips, tricks, and time - saving techniques in oil, alkyd, acrylic, gouache, casein, watercolor, dyes, inks, airbrush, scratchboard, pastel, colored pencil, and mixed media . new york: watson-guptill publications.

Gaya MLA

Howard, Rob. "The illustrators bible : the complete sourcebook of tips, tricks, and time - saving techniques in oil, alkyd, acrylic, gouache, casein, watercolor, dyes, inks, airbrush, scratchboard, pastel, colored pencil, and mixed media". new york: watson-guptill publications, 1992. Text.