APA-Zitierstil (7. Ausg.)

(1990). International co-operative programm on assessment and monitoring of acidification of rivers and lakes: Convention on long-range transboundary air-pollution ; fifth meeting of the programm task force, Freiburg, Federal Republic of Germany, October 17 - 19, 1989 ; proceedings.

Chicago-Zitierstil (17. Ausg.)

International Co-operative Programm on Assessment and Monitoring of Acidification of Rivers and Lakes: Convention on Long-range Transboundary Air-pollution ; Fifth Meeting of the Programm Task Force, Freiburg, Federal Republic of Germany, October 17 - 19, 1989 ; Proceedings. Berlin, 1990.

MLA-Zitierstil (9. Ausg.)

International Co-operative Programm on Assessment and Monitoring of Acidification of Rivers and Lakes: Convention on Long-range Transboundary Air-pollution ; Fifth Meeting of the Programm Task Force, Freiburg, Federal Republic of Germany, October 17 - 19, 1989 ; Proceedings. 1990.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.