Citace podle APA (7th ed.)

ebrary, Inc, Kull, K., & Emmeche, C. (2011). Towards a semiotic biology: Life is the action of signs. Imperial College Press ; Distributed by World Scientific.

Citace podle Chicago (17th ed.)

ebrary, Inc, Kalevi Kull, a Claus Emmeche. Towards a Semiotic Biology: Life Is the Action of Signs. London : Singapore ; Hackensack, N.J.: Imperial College Press ; Distributed by World Scientific, 2011.

Citace podle MLA (9th ed.)

ebrary, Inc, et al. Towards a Semiotic Biology: Life Is the Action of Signs. Imperial College Press ; Distributed by World Scientific, 2011.

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