Columbia subject headings:
Helping behavior--United States--Handbooks, manuals, etc.
Nurturing behavior--United States--Handbooks, manuals, etc.
Parent and child--United States--Handbooks, manuals, etc.
Harvard subject headings:
Helping behavior--United States--Handbooks, manuals, etc.
Nurturing behavior--United States--Handbooks, manuals, etc.
Parent and child--United States--Handbooks, manuals, etc.
Princeton subject headings: