Down to earth : environment and human needs /

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Sonraí Bibleagrafaíochta
Príomhúdar: Eckholm, Erik P.
Formáid: Printed Book
Foilsithe: New York : Norton, c1982.
Eagrán:1st ed.
Ábhair:
Human ecology.
Environmental protection.

Míreanna Comhchosúla