APA (7th ed.) Citation

SpringerLink (Online service), Kroon, H. d., & Visser, E. J. W. (2003). Root ecology. Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Hans de Kroon, and E. J. W. Visser. Root Ecology. Berlin ; New York: Springer, 2003.

MLA (9th ed.) Citation

SpringerLink (Online service), et al. Root Ecology. Springer, 2003.