The dynamic Great Lakes /
Spring, Barbara.
The dynamic Great Lakes / Great Lakes by Barbara Spring. - Baltimore, Md. : AmErica House, c2001. - 107 p. : ill., maps, 22 cm.
Includes bibliographical references (p.105-107).
1588517314
Biotic communities--Great Lakes.
Natural history--Great Lakes Region.
Ecology--Great Lakes.
Great Lakes--Environmental aspects.
The dynamic Great Lakes / Great Lakes by Barbara Spring. - Baltimore, Md. : AmErica House, c2001. - 107 p. : ill., maps, 22 cm.
Includes bibliographical references (p.105-107).
1588517314
Biotic communities--Great Lakes.
Natural history--Great Lakes Region.
Ecology--Great Lakes.
Great Lakes--Environmental aspects.