An Introduction To Ecology: Six Basic Systems
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Copyright
Registered 17Sep70 · JP12805 (Jan-Jun 1971) Copyright holder: Educational Direction, Inc Production company: Educational Direction
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T20:21:59Z