vital research for an art project

Dear Mr Hoffman, 
                Thank you very much for giving me the chance to visit your amazing website. I hope it is alright for me to use some of the images of the children in Vietnam for a current art project.
I studied Vietnam in history last term, and remembered a book that my teacher brought in for us to look at, which had the most outstanding photographs of the Vietnamese people during the war. I thought that would be an interesting area to research, the civilian side of war, and your images were perfect for that. So I would extremely grateful if I could use the images of the children.
Thank you very much again 
 Natalie