Slow Learner. From page 641 of Gravity’s Rainbow.
Vineland. From the beginning of ch. 66 of Mason & Dixon.
Inherent Vice. From page 272, chapter 27 of Mason & Dixon.
Against the Day. From page 125, chapter 13 of Mason & Dixon.
Pynchon book titles embedded in other Pynchon books
Biblioklept 