Han yu wai mao kou yu 30 ke =  Spoken Chinese for External Trade in 30 Lessons - Textbook/  [book] 
edited by 700 
 - Beijing :  Beijing Language and Culture Univ. Press,  2007. 
 - 514 p.+  6 sound cassette. 
<br/><br/><label>ISBN: </label>9787561904800  บาท CN-M04-93-0014-0 (ISEC : Tape) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chinese language--Business Chinese<br/>Chinese language--(for merchants)--(for merchants)<br/>Chinese language--Textbooks for foreign speakers.<br/>Chinese language--Spoken Chinese.
<br/><br/><label>LC Class. No.: </label>PL1121  / .H369