宁宇航，韩光著/绘. (2020). 手绘心天地：钢笔画手绘技法从局部到整体. 人民邮电出版社.
Chicago Style (17th ed.) Citation宁宇航，韩光著/绘. 手绘心天地：钢笔画手绘技法从局部到整体. 人民邮电出版社, 2020.
MLA (8th ed.) Citation宁宇航，韩光著/绘. 手绘心天地：钢笔画手绘技法从局部到整体. 人民邮电出版社, 2020.
Warning: These citations may not always be 100% accurate.