1. Parenthood as crisis, Crisis Intervention: Selected Readings;LeMasters,1965
2. Parenthood as crisis: A re-study;Dyer;Marriage Fam Living,1963
3. Parenthood as crisis: A third study;Hobbs;J Marriage Fam,1975
4. Psychological changes accompanying pregnancy and motherhood;Leifer;Genet Psychol Monogr,1977
5. Stresses of the childbearing year;Larsen;Am J Public Health,1966