APA (7th ed.) Citation

ScienceDirect (Online service), Wassarman, P. M., & Keller, G. M. (2003). Differentiation of embryonic stem cells. Elsevier/Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Paul M. Wassarman, and Gordon M. Keller. Differentiation of Embryonic Stem Cells. San Diego, California: Elsevier/Academic Press, 2003.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Differentiation of Embryonic Stem Cells. Elsevier/Academic Press, 2003.