Ptak, Roderich <br/><br/>
China and the Asian seas :  trade, travel, and visions of the other (1400-1750) / 
Roderich Ptak 
 - Aldershot :  Ashgate,  1998 
 - 1 v. (various pagings) :  ill. ;  23 cm. 
 - Variorum collected studies series ;  CS638 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0860787753 (hc.)  RM452.25 
<br/><br/><label>Subjects--Personal Names: </label><br/>Zheng, He, 1371-1435 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Merchant marine--History--China
<br/><br/><label>Subjects--Geographic Terms: </label><br/>China--Commerce--History--Asia<br/>Asia--Commerce--History--China<br/>Portugal--Commerce--History--Asia<br/>Asia--Commerce--History--Portugal