APA-Zitierstil (7. Ausg.)

(1975). Indicators of environmental quality: Proceedings of a symposium held during the AAS meeting in Philadelphia, Pa., Dec. 26 - 31, 1971 (1. paperback printing.). Plenum Press.

Chicago-Zitierstil (17. Ausg.)

Indicators of Environmental Quality: Proceedings of a Symposium Held During the AAS Meeting in Philadelphia, Pa., Dec. 26 - 31, 1971. 1. paperback printing. New York, NY: Plenum Press, 1975.

MLA-Zitierstil (9. Ausg.)

Indicators of Environmental Quality: Proceedings of a Symposium Held During the AAS Meeting in Philadelphia, Pa., Dec. 26 - 31, 1971. 1. paperback printing. Plenum Press, 1975.