Book lending instructions
From Istlab
To take out a book on loan, verify that the book is not marked as a reference book. If the book can indeed be taken out on loan, edit the book's page, and at the top of the book's categories add the following:
{{Bookloan|USERNAME|GROUP}}
where USERNAME is your wiki user identifier and GROUP your group. For example,
{{Bookloan|dds|SENSE}}
{{Book}}
...