Wood, S. N. (2017). Generalized additive models: An Introduction with R (Second edition.). CRC Press / Taylor & Francis Group.

Wood, Simon N. Generalized Additive Models: An Introduction with R. Second edition. Boca Raton, USA: CRC Press / Taylor & Francis Group, 2017.

Wood, Simon N. Generalized Additive Models: An Introduction with R. Second edition. CRC Press / Taylor & Francis Group, 2017.