For training a Labrador that points, there is only one book, and it's "The Pointing Labrador" by Paul and Julie Knutson.
For a good ol' "meat dog" (hunting dog), the "10 Minute Retriever" by John and Amy Dahl is good. For the ultimate retriever and Field Test/Hunt Test dog, the "Smartwork for Retrievers" series by Evan Graham is top shelf.