APA-ийн эшлэл(7 дахь хэвлэлт)

Dresp-Langley, B., & Langley, K. (2010). The importance of colour perception to animals and man. Nova Science Publishers.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Dresp-Langley, Birgitta, ба Keith Langley. The Importance of Colour Perception to Animals and Man. New York: Nova Science Publishers, 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Dresp-Langley, Birgitta, ба Keith Langley. The Importance of Colour Perception to Animals and Man. Nova Science Publishers, 2010.