Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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