Scientists of rivers, lakes, and ponds /
Braun, Eric, 1971-
Scientists of rivers, lakes, and ponds / by Eric Braun and Sandra Donovan. - Austin : Steadwell Books, c2002. - 48p. cm. - Scientists of the biomes .
Includes bibliographical references (p. ) and index.
Briefly describes rivers, lakes, and ponds, some of the life forms that depend on them, and what scientists are doing to help conserve them.
0739847554 : $24.26
2001031866
Rivers.
Lakes.
Ponds.
Conservation of natural resources.
QH97 / .B73 2002
578.763
Scientists of rivers, lakes, and ponds / by Eric Braun and Sandra Donovan. - Austin : Steadwell Books, c2002. - 48p. cm. - Scientists of the biomes .
Includes bibliographical references (p. ) and index.
Briefly describes rivers, lakes, and ponds, some of the life forms that depend on them, and what scientists are doing to help conserve them.
0739847554 : $24.26
2001031866
Rivers.
Lakes.
Ponds.
Conservation of natural resources.
QH97 / .B73 2002
578.763