拉德纳 & 罗伯茨. (2014). OK Photoshop+Illustrator插画设计灵感集: Digital art technique manual for illustrators & artists. 电子工业出版社.
Dyfyniad Arddull Chicago拉德纳 and 罗伯茨. OK Photoshop+Illustrator插画设计灵感集: Digital Art Technique Manual for Illustrators & Artists. 电子工业出版社, 2014.
Dyfyniad MLA拉德纳 and 罗伯茨. OK Photoshop+Illustrator插画设计灵感集: Digital Art Technique Manual for Illustrators & Artists. 电子工业出版社, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.