Official Books of Countries:-

1. Blue Book - An official report of the British Government.
2.Green Book - Official Publications of Italy and Persia
3. Grey Book - Official reports of the Government of Japan and Belgium.
4.Orange Book - Official publication of the Govt. of Netherlands.
5. White Book - Official publications of China, Germany and Portugal.
6. White Paper - Official Paper of the Govt. of Britain and India on a particular issue.(facebook/cnaonweb)
7. Yellow Book - Official paper of the Govt. of France.