1. East China Sea, China--east coast, Ma'an Liedao to Rudong Yale Public content 1991. 2011-12-15T20:18:24Z. 2015-10-21T15:07:54Z. United States. Defense Mapping Agency. Hydrographic/Topographic Center. The Center ; USGS Branch of Distribution, Box 25286, distributor. English. Public. East China Sea and Yangtze River (China).