Gentlemen (and ladies) - may I respectfully reccommend to you an absolutely fabulous little book from Editions Palmier produced by Michel Delannoy?
The first book covers the 1950 500 cc F.3 race and the 1959 and 1960 Formula Junior races.
The photographs within this slime volume are wonderful - showing cars I have never even heard of before.
The text is in both French and English and if you have any feeling for this era of motor sport, you MUST get this book.