于文博 & 冯兵强. (2008). 每天进步1%: Make progress by one percent each day. 知识出版社.
Style de citation Chicago (17e éd.)于文博 et 冯兵强. 每天进步1%: Make Progress by One Percent Each Day. 知识出版社, 2008.
Style de citation MLA (8e éd.)于文博 et 冯兵强. 每天进步1%: Make Progress by One Percent Each Day. 知识出版社, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.