(美)丹·希思(Dan Heath)著. (2021). 上游思维：the quest to solve problems before they happen. 中信出版集团股份有限公司.
Chicago (17e ed.) Bronvermelding(美)丹·希思(Dan Heath)著. 上游思维：the Quest to Solve Problems Before They Happen. 中信出版集团股份有限公司, 2021.
MLA (8e ed.) Bronvermelding(美)丹·希思(Dan Heath)著. 上游思维：the Quest to Solve Problems Before They Happen. 中信出版集团股份有限公司, 2021.
Let op: Deze citaties zijn niet altijd 100% accuraat.