APA (7th ed.) Citation
Poesen, J., Nachtergaele, J., Verstraeten, G., & Valentin, C. (2003). Gully erosion and environmental change: Importance and research needs.
Chicago Style (17th ed.) Citation
Poesen, J., J. Nachtergaele, G. Verstraeten, and Christian Valentin. Gully Erosion and Environmental Change: Importance and Research Needs. 2003.
MLA (9th ed.) Citation
Poesen, J., et al. Gully Erosion and Environmental Change: Importance and Research Needs. 2003.
Warning: These citations may not always be 100% accurate.