EN中文
秦皇岛地区新生代古地理若干问题的初步探讨
孔繁德
Primary Diacusion on Palaeogeogra-phical Several Prablems of Neozoic Era in Qinhungdao Region
地理研究 . 1987, (2): 94 -94 .  DOI: 10.11821/yj1987020019