Three centuries of scientific hydrology;a contribution to the international hyderological. 

 - Paris  UNESCO         1974 
 - 123p.  cm. 
<br/><br/><label>Standard No.: </label>123699 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical Geography
<br/><br/><label>Dewey Class. No.: </label>"U2.1.N74<--K74, L4/UN"