Jürgens, E. Pictures - what for?: Seven hypotheses on the origin of art / Ekkehard Jürgens. Origins of pictures : anthropological discourses in image science.(2013).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJürgens, Ekkehard. "Pictures - What for?: Seven Hypotheses on the Origin of Art / Ekkehard Jürgens." Origins of Pictures : Anthropological Discourses in Image Science.(2013) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रJürgens, Ekkehard. "Pictures - What for?: Seven Hypotheses on the Origin of Art / Ekkehard Jürgens." Origins of Pictures : Anthropological Discourses in Image Science.(2013), .
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