(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.
Lua i Stíl Chicago (17ú heag.)(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.
Lua MLA (8ú heag.)(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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.