{{cite book |title=title |lay-url=http://example.org/laysummary |lay-source=lay-source |lay-date=lay-date}}
title. {{cite book}}: Unknown parameter |lay-date= ignored (help); Unknown parameter |lay-source= ignored (help); Unknown parameter |lay-url= ignored (help)
{{cite book}}
|lay-date=
|lay-source=
|lay-url=