Columbia subject headings:
Academic achievement--Case studies.
Birth order--United States--Case studies.
Cost and standard of living--United States--Case studies.
Family size--United States--Case studies.
Students--United States--Social conditions--Case studies.
Harvard subject headings:
Academic achievement--Case studies.
Academic achievement--United States--Case studies
Birth order--United States--Case studies.
Case studies.
Cost and standard of living--United States--Case studies.
Family size--United States--Case studies.
Students--United States--Social conditions--Case studies.
Princeton subject headings:
Academic achievement--Case studies.
Birth order--United States--Case studies.
Cost and standard of living--United States--Case studies.
Family size--United States--Case studies.
Students--United States--Social conditions--Case studies.