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APA Zitierstil

Beaulieu, J. L. d., Ponel, P., & Edouard, J. L. (1990). Timber line and human impact in the French Alps. The state of the art and the research programs.

Chicago Zitierstil

Beaulieu, J. L. de, P. Ponel, and J. L. Edouard. Timber Line and Human Impact in the French Alps. The State of the Art and the Research Programs. 1990.

MLA Zitierstil

Beaulieu, J. L. de, P. Ponel, and J. L. Edouard. Timber Line and Human Impact in the French Alps. The State of the Art and the Research Programs. 1990.