Cita 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.
Cita Chicago (17th ed.)
ebrary, Inc, Kalevi Kull, i 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.
Cita 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.
Atenció: Aquestes cites poden no estar 100% correctes.