Cassidy, Rebecca. 2009. 'Zoophilia reconsidered’ (Chapter 5. Zoosex and Other Relationships with Animals). In: Hastings Donnan and Fiona Magowan, eds. Transgressive sex. 13 Oxford: Berghahn Press. ISBN 978-1-84545-539-2 [Book Section]

Cassidy, Rebecca. 2009. Zoosex and other relationships with animals. In: Hastings Donnan and Fiona Magowan, eds. Transgressive Sex: subversion and control in erotic encounters. 13 Oxford and New York: Berghahn, pp. 91-112. ISBN 978-1-84545-539-2 [Book Section]

Johnson, Mark. 2008. Transgression and the Making of ‘Western’ Sexual Sciences. In: Hastings Donnan and Fiona McGowan, eds. Transgressive Sex: Subversion and Control in Erotic Encounters. 13 Oxford: Berghan, pp. 167-190. ISBN 978-1-84545-539-2 [Book Section]