@article{Kuan-Jen Chen:318, author = {Kuan-Jen Chen}, title = {Po, Ronald C., The Blue Frontier: Maritime Vision and Power in the Qing Empire }, publisher = {Front. Hist. China}, year = {2020}, journal = {Frontiers of History in China}, volume = {15}, number = {2}, eid = {318}, numpages = {2}, pages = {318}, keywords = {}, url = {https://journal.hep.com.cn/fhc/EN/abstract/article_27711.shtml}, doi = {10.3868/s020-009-020-0012-4} }