ebrary, Inc, Kull, K., & Emmeche, C. (2011). Towards a semiotic biology: Life is the action of signs. Imperial College Press ; Distributed by World Scientific.
芝加哥风格引文ebrary, Inc, Kalevi Kull, 与 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.
MLA引文ebrary, Inc, et al. Towards a Semiotic Biology: Life Is the Action of Signs. Imperial College Press ; Distributed by World Scientific, 2011.
警告：这些引文格式不一定是100％准确.