What is the narrator point of view in the novel, Three Junes?

Three Junes is narrated in both the first and third-person reflective narrative mode, alternating between narrators, and the past and the present time. An unnamed, third-person narrator tells the parts of the novel that deal primarily with Paul and Fern, while Fenno tells the part of the novel that deals with his own life. (This is seemingly because no one else knows Fenno well enough to be able to speak about his life, so Glass has left it up to Fenno himself to narrate his own story.)