Tomzack, Helena María de Amorim <br/><br/>
Subsidies for monitoring rivercrossings and fishing boat points on a section of the Apa River, at the Brazilian/Paraguayan border 

 - 13 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hidrografía<br/>Monitoreo<br/>Brasil<br/>Paraguay