Q. What are Green Papers and White Papers?

Green and White Papers are consultation documents produced by Government departments to gather feedback on changes to policy (Green Papers) and to outline legislative proposals or draft Bills (White Papers, which often follow a Green Paper and are sometimes called Command Papers. Command Papers are numbered in sequence). 

The parliament.uk website offers an excellent glossary of key terms, including Acts of Parliament, Bills and Debates.

For some referencing examples, try the School of Education subject guide, under the Policy tab.