Παραπομπή APA

(1983). Ecological indicators for the assessment of the quality of air, water, soil, and ecosystems: Papers presentyed at a symposium held in Utrecht, October 1982. Dordrecht, Holland: D. Reidel.

Παραπομπή Chicago Style

Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems: Papers Presentyed At a Symposium Held in Utrecht, October 1982. Dordrecht, Holland: D. Reidel, 1983.

Παραπομπή MLA

Ecological Indicators for the Assessment of the Quality of Air, Water, Soil, and Ecosystems: Papers Presentyed At a Symposium Held in Utrecht, October 1982. Dordrecht, Holland: D. Reidel, 1983.

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