Incoming Resources
- Four stages of life, Marjorie Fiske Lowenthal, Majda Thurnher, David Chiriboga, and associates
- Passages, predictable crises of adult life, Gail Sheehy
- Regular guys, 34 years beyond adolescence, Daniel Offer, Marjorie Kaiz Offer, and Eric Ostrov
- The seasons of a woman's life, by Daniel J. Levinson ; in collaboration with Judy D. Levinson