Philippines. Environmental Management Bureau. Environmental Education and Information Division. Metro Manila environment: Problem and perspective. Megascope Graphics.
Chicago-Zitierstil (17. Ausg.)Philippines. Environmental Management Bureau. Environmental Education and Information Division. Metro Manila Environment: Problem and Perspective. [S.l.]: Megascope Graphics.
MLA-Zitierstil (9. Ausg.)Philippines. Environmental Management Bureau. Environmental Education and Information Division. Metro Manila Environment: Problem and Perspective. Megascope Graphics.
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