Official books of countries
| Official book | Countries |
|---|---|
| Blue book | In this the official reports of Britain/India are described. |
| Green book | This book contains official publication details of Itali/Iran |
| Grey book | In this book the official reports of Japan/Belgium are described |
| Orange book | This book contains official publication of Netherland |
| White book | This book contains official publication details of German/Portugal/China |
| Yellow book | This book contains official publication of France |
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