(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.
Dyfyniad Arddull Chicago(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.
Dyfyniad MLA(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.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.