MLA

Karen E. Nelson, and Karen E Nelson. Metagenomics of the Human Body. Springer New York, 2011.

APA

Karen E. Nelson, K. E. Nelson, & Nelson, K. E. (2011). Metagenomics of the Human Body. Springer New York.

Chicago

Karen E. Nelson, and Karen E Nelson. Metagenomics of the Human Body. : Springer New York, 2011.