APA (7th ed.) Citation

Grabherr, G., Mucina, L., Dale, M., & ter Braak, C. (1989). Progress in Theoretical Vegetation Science.

Chicago Style (17th ed.) Citation

Grabherr, G., Ladislav Mucina, M. Dale, and C. ter Braak. Progress in Theoretical Vegetation Science. 1989.

MLA (9th ed.) Citation

Grabherr, G., et al. Progress in Theoretical Vegetation Science. 1989.