Cita APA (7a ed.)
Penkala, Z. (2007). Life as an experiment. Cambridge Scholars Publishing.
Cita Chicago Style (17a ed.)
Penkala, Zdenek. Life as an Experiment. Newcastle, UK: Cambridge Scholars Publishing, 2007.
Cita MLA (9a ed.)
Penkala, Zdenek. Life as an Experiment. Cambridge Scholars Publishing, 2007.
Precaución: Estas citas no son 100% exactas.