Gaya APA

Environmental quality objectives and action tergets for water protection : status report and prospects / edited by Biol, Ulrich Claussen...[et.al]. (2000). : Berlin : Federal Environmental Agency.

Gaya MLA

Environmental quality objectives and action tergets for water protection : status report and prospects / edited by Biol, Ulrich Claussen...[et.al]. . : Berlin : Federal Environmental Agency, 2000. Text.