Ingold, Peter Rudolf,  1936 <br/><br/>
The role of river training in the improvement of inland water transportation in Central Thailand / 
by Peter Rudolf Ingold. 
 - 1 microfilm reel :  positive ;  35 cm. 
<br/><br/>Thesis (Ph.D.)- University of Michigan, 1973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inland water transportation--Thailand.