Intrinsically Motivated Learning in Natural and Artificial Systems
  MLA
  Baldassarre, Gianluca, Marco Mirolli, and  Marco Mirolli. Intrinsically Motivated Learning In Natural and Artificial Systems. Dordrecht: Springer Berlin Heidelberg, 2013.
  APA
  Baldassarre, G., Mirolli, M., & Marco Mirolli, M. Mirolli. (2013). Intrinsically Motivated Learning in Natural and Artificial Systems. Dordrecht: Springer Berlin Heidelberg.
  Chicago
  Baldassarre, Gianluca, Marco Mirolli, and  Marco Mirolli. Intrinsically Motivated Learning In Natural and Artificial Systems. Dordrecht: Springer Berlin Heidelberg, 2013.