"Growing Up with Two Languages" by Una Cunningham
A practical guide for the bilingual family

Una Cunningham is an Associate Professor in Modern Languages at Stockholm University, Sweden. She and her husband, Staffan Andersson, have raised their four children to speak English and Swedish in Sweden.

Рекомендую почитать всем, кто изучает с детками иностранный. Книга написана просто и доступно.