APA (7th ed.) Citation

SpringerLink (Online service), Khan, N. A., Singh, S., & Umar, S. (2008). Sulfur Assimilation and Abiotic Stress in Plants. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Nafees A. Khan, Sarvajeet Singh, and Shahid Umar. Sulfur Assimilation and Abiotic Stress in Plants. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Sulfur Assimilation and Abiotic Stress in Plants. Springer Berlin Heidelberg, 2008.