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Graham, Ian.

Plants : a resource our world depends on / by Ian Graham. - Oxford : Heinemann Library, 2004. - 32 p. : ill., photo., col ; 25 cm. - Earth's Precious Resources Heinemann Infosearch . - Earth's Precious Resources Heinemann Infosearch .

Includes glossary and index.

ISBN: 0431115516

Subjects--Topical Terms:
Human--Plant relationships.
Plants.

Subjects--Geographic Terms:
Botany, economy.