Our endangered planet.

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by Hoff, Mary King.
[ 01. English Non Fiction ] Authors: Rodgers, Mary M.--(Mary Madeline),--1954- Published by : Lerner Publications Co., (Minneapolis :) Physical details: 64 p. : col. ill. ; 21 x 23 cm. Subject(s): Groundwater --Management --Juvenile literature. | Groundwater --Pollution --Juvenile literature. | Water --Pollution --Juvenile literature. | Groundwater. | Groundwater --Pollution. | Water --Pollution. | Pollution. Year : 1991 01. English Non Fiction Item type : 01. English Non Fiction

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Includes index.

Describes the global uses and abuses of groundwater and suggests ways to preserve this valuable resource.