I think this tract below is one of the best tracts or booklets to share the gospel with in the seven languages below.
You may read the tract or booklet online on the website below.

http://www.majestic-media.com/

It is in English, Spanish, French, Chinese or Mandarin, Afrikaans, German and Arabic.
Majestic Media also has a children's version of the tract. It is around 20 cents each.