APA (7th ed.) Citation

Baumgärtner, S., Faber, M., & Proops, J. L. R. (1996). Entropy: A unifying concept for ecologial economics. Ecological economics.

Chicago Style (17th ed.) Citation

Baumgärtner, Stefan, Malte Faber, and John L. R. Proops. "Entropy: A Unifying Concept for Ecologial Economics." Ecological Economics 1996.

MLA (9th ed.) Citation

Baumgärtner, Stefan, et al. "Entropy: A Unifying Concept for Ecologial Economics." Ecological Economics, 1996.