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APA Citation Edition Citation

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 Citation Edition Citation

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

MLA Citation Edition Citation

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