Cita APA

 Walker, C. H. (2012).  Principles of ecotoxicology.  CRC Press.

Chicago Style Citation

 Walker, C. H.  Principles of Ecotoxicology.  CRC Press, 2012.

Cita MLA

 Walker, C. H.  Principles of Ecotoxicology.  CRC Press, 2012.

Atenció: Aquestes cites poden no estar 100% correctes.