Stępkowski, A. (2014). Protection of human life in its early stage: Intellectual foundations and legal means. Peter Lang Edition.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStępkowski, Aleksander. Protection of Human Life in Its Early Stage: Intellectual Foundations and Legal Means. Frankfurt am Main, [Germany]: Peter Lang Edition, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStępkowski, Aleksander. Protection of Human Life in Its Early Stage: Intellectual Foundations and Legal Means. Peter Lang Edition, 2014.
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