19th-century navigable definition; 21st-century river economy
M
A 19th-century navigable definition does not work for 21st-century river economies
29 February 2024
bigger
![[prev]](/gifs/arrow.plain.left.gif){kind=icon}
![[index]](/gifs/arrow.plain.up.gif){kind=icon}
![[next]](/gifs/arrow.plain.right.gif){kind=icon}
