Ichiki, H., & Umehara, T. (2005). Extra-ordinary: An amusing guide for unleashing your creativity. Rockport.
Citazione stile Chigago Style (17a edizione)Ichiki, Hisako, e Takao Umehara. Extra-ordinary: An Amusing Guide for Unleashing Your Creativity. Gloucester, Mass: Rockport, 2005.
Citatione MLA (9a ed.)Ichiki, Hisako, e Takao Umehara. Extra-ordinary: An Amusing Guide for Unleashing Your Creativity. Rockport, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.