Pring, Linda. 2007. Blindness and visual disability. In: Susan Ayers; Andrew Baum; Chris McManus; Stanton Newman; Kenneth Wallston; John Weinman and Robert West, eds. Cambridge Handbook of Psychology, Health and Medicine 2nd Edition. Cambridge: Cambridge University Press, pp. 565-566. ISBN 9780521605106 [Book Section]

Pickering, Alan. 1997. Conditioning and learning. In: Andrew Baum, ed. Cambridge Handbook of Psychology, Health, and Medicine. Cambridge, UK; New York, NY, USA: Cambridge University Press, pp. 12-17. ISBN 9780521430739 [Book Section]