APA (7th ed.) Citation

SpringerLink (Online service), Seviour, R. J., & Blackall, L. L. (1999). The microbiology of activated sludge. Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), R. J. Seviour, and L. L. Blackall. The Microbiology of Activated Sludge. Dordrecht ; Boston: Springer, 1999.

MLA (9th ed.) Citation

SpringerLink (Online service), et al. The Microbiology of Activated Sludge. Springer, 1999.