Misty,
Are you looking for music from those composers? Or books about them? If you are looking for music, may I suggest signing up for Spotify? We pay $5 a month for it and I have found absolutely everything I need for composer study on there. We play it constantly and it is well worth the $5 a month. You can also use it absolutely free for (I think) 20 hours per month. However, there are some ads on there that we definitely did not want to hear. Because my kids were so attached to it, we decided it was worth paying for. By the way, they even have lots of the wonderful Classical Kids series available on there.
In addition to that, you can also buy mp3 downloads of tons of classical music very inexpensively from Amazon. I got 100 Debussy’s for $2.99, I believe.