Title: Hua bei Diqu gu sheng wu tu ce.
Authors: Guo jia di zhi zong ju Tianjin di zhi kuang chan yan jiu suo.; China.
Publisher: Di zhi chu ban she : Xin hua shu dian Beijing fa xing suo fa xing,
Year: 1984
Subjects: Paleontology China; Paleontology China Atlases.