Artículo:

Fragile Life in Freshwater

Sub título:

Many species that live In freshwater are endangered. A pho-tographer is racing to document them before it's too late.

Autor:

DAVID HERASIMTSCHUK

Publicación:

National Geographic

Volúmen:

236

Número:

4

Periodo:

Octubre 2019

ISSN:

00279358

SrcID:

00279358-2019-10.txt