 Examples of the end result of this procedure include the series done by Cambridge on Greco-Roman history, and that of Oxford on British history, which may be found on the reserve stacks of many public libraries in the 21st century.
<clarity>  Examples of the end result of this procedure include the series done by Cambridge on Greco-Roman history, and that of Oxford on British history, which may be found on the reserve stacks of many public libraries in the 21st century.
 Examples of the end result of this procedure include the series produced by Cambridge on Greco-Roman history, and that of Oxford on British history, which may be found on the reserve stacks of many public libraries in the 21st century.