Year
1922
Text
Grabau, Amadeus W. Ordovician fossils of north China. With plates I-IX and 20 text figures. (Peking : Geological Survey of China, 1922). (Geological Survey. Palaeontologia sinica ; ser. B, vol. 1, fasc. 1). (GraA7)
Type
Publication
Contributors (1)
Subjects
Archaeology and Epigraphy