Columbia subject headings:
Big Brothers of America--History.
Big Brothers/Big Sisters of America--History.
Children and adults--United States--History.
Children of single parents--Services for--United States--History.
Friendship in children.
Harvard subject headings:
Big Brothers of America--History.
Big Brothers/Big Sisters of America--History.
Children and adults--United States--History.
Children of single parents--Services for--United States--History.
Friendship in children.
Princeton subject headings:
Big Brothers of America--History.
Big Brothers/Big Sisters of America--History.
Children and adults--United States--History.
Children of single parents--Services for--United States--History.
Friendship in children.