Tohutoro APA (7th ed.)
Penkala, Z. (2007). Life as an experiment. Cambridge Scholars Publishing.
Tohutoru Kātū Chicago (17th ed.)
Penkala, Zdenek. Life as an Experiment. Newcastle, UK: Cambridge Scholars Publishing, 2007.
Tohutoro MLA (9th ed.)
Penkala, Zdenek. Life as an Experiment. Cambridge Scholars Publishing, 2007.
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