APA-čujuhus (7. p.)
Dresp-Langley, B., & Langley, K. (2010). The importance of colour perception to animals and man. Nova Science Publishers.
Chicago-čujuhus (17. p.)
Dresp-Langley, Birgitta, juo Keith Langley. The Importance of Colour Perception to Animals and Man. New York: Nova Science Publishers, 2010.
MLA-čujuhus (9. p.)
Dresp-Langley, Birgitta, juo Keith Langley. The Importance of Colour Perception to Animals and Man. Nova Science Publishers, 2010.
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