Ordovician fossils of north China,
Grabau, Amadeus W. 1870-1946.
Ordovician fossils of north China, by Amadeus W. Grabau, with plates I-IX and 20 text figures. - Peking, Published by the Geological Survey of China, 1922. - 127 p. illus., IX plates. 31 cm.
Bibliography: p. 96-98.
gs 34000071
Paleontology--China.
Paleontology--Ordovician.
QE756.C6 / A3 ser. B, vol. 1, fasc. 1
Ordovician fossils of north China, by Amadeus W. Grabau, with plates I-IX and 20 text figures. - Peking, Published by the Geological Survey of China, 1922. - 127 p. illus., IX plates. 31 cm.
Bibliography: p. 96-98.
gs 34000071
Paleontology--China.
Paleontology--Ordovician.
QE756.C6 / A3 ser. B, vol. 1, fasc. 1