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It is hard to give detailed answers without knowing details in the first place.
1: It is always a good idea to add image credits to your books when using stock photos.
2: Is your book under the 500,000 print copies?
3: If the images are a main part of the book you will need an extended license.
4: Have you read the licensing terms to see if your use case fits the standard license?
But just from what you posted above it sounds like you would need an extended license. You can get those through Fotolia.com for any images that are on Adobe Stock.