METZNER, H. The Dominating Ecological Problems at the End of the 20th Century.
Chicago Style (17th ed.) CitationMETZNER, HELMUT. The Dominating Ecological Problems at the End of the 20th Century.
MLA (9th ed.) CitationMETZNER, HELMUT. The Dominating Ecological Problems at the End of the 20th Century.
Warning: These citations may not always be 100% accurate.
