Cita APA (7a ed.)

ebrary, Inc, & Nicholson, R. (2013). The placenta: Development, function and diseases. Nova Science Publishers, Inc..

Cita Chicago Style (17a ed.)

ebrary, Inc, y Richard Nicholson. The Placenta: Development, Function and Diseases. Hauppauge, N.Y.: Nova Science Publishers, Inc., 2013.

Cita MLA (9a ed.)

ebrary, Inc, y Richard Nicholson. The Placenta: Development, Function and Diseases. Nova Science Publishers, Inc., 2013.