SpringerLink (Online service), Hawkesford, M. J., & Kok, L. J. D. (2007). Sulfur in Plants An Ecological Perspective. Springer Netherlands.
Chicago Style (17th ed.) CitationSpringerLink (Online service), Malcolm J. Hawkesford, and Luit J. De Kok. Sulfur in Plants An Ecological Perspective. Dordrecht: Springer Netherlands, 2007.
MLA (8th ed.) CitationSpringerLink (Online service), et al. Sulfur in Plants An Ecological Perspective. Springer Netherlands, 2007.
Warning: These citations may not always be 100% accurate.