Words without Objects: Semantics, Ontology, and Logic for Non-Singularity. : Oxford University Press, 2006-04-06. Oxford Scholarship Online. 2006-05-01. Date Accessed 18 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0199281718.001.0001/acprof-9780199281718>.
(2006-04-06). Words without Objects: Semantics, Ontology, and Logic for Non-Singularity. : Oxford University Press. Retrieved 18 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0199281718.001.0001/acprof-9780199281718.
Words without Objects: Semantics, Ontology, and Logic for Non-Singularity. : Oxford University Press, 2006-04-06. http://www.oxfordscholarship.com/view/10.1093/0199281718.001.0001/acprof-9780199281718.
Laycock H. Words without Objects: Semantics, Ontology, and Logic for Non-Singularity. Oxford University Press; 2006. http://www.oxfordscholarship.com/view/10.1093/0199281718.001.0001/acprof-9780199281718. Accessed May 18, 2013.