APA-Zitierstil (7. Ausg.)

(1972). Indicators of environmental quality: Proceedings of a symposium held during the AAAS meeting in Philadelphia, Penn., Dec. 26-31, 1971. Plenum Pr.

Chicago-Zitierstil (17. Ausg.)

Indicators of Environmental Quality: Proceedings of a Symposium Held During the AAAS Meeting in Philadelphia, Penn., Dec. 26-31, 1971. New York: Plenum Pr, 1972.

MLA-Zitierstil (9. Ausg.)

Indicators of Environmental Quality: Proceedings of a Symposium Held During the AAAS Meeting in Philadelphia, Penn., Dec. 26-31, 1971. Plenum Pr, 1972.