Chao, Ya-tsʻêng,  -1929. <br/><br/>
Carboniferous and Permian spiriferids of China, 
By Ya-tseng T. Chao. 
 - Peiping (Peking)  Geological survey of China,  1929. 
 - 133 p.; 1 p. l., 6 p.  incl. illus., tables. XI pl.  30 cm. 
<br/><br/> Added t.-p. and summary in Chinese. Summary paged with Chinese numerals.  Errata slip inserted. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 29000314  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spiriferida.<br/>Paleontology--China.<br/>Paleontology--Paleozoic.
<br/><br/><label>LC Class. No.: </label>QE756.C6  / A3 ser. B, vol. 11, fasc. 1