Columbia subject headings:
Education and state--United States--Directories.
Education, Rural--United States--Directories.
Education--Societies, etc.--United States--Directories.
Rural schools--United States--Directories.
Harvard subject headings:
Princeton subject headings:
Directories.
Education and state--United States--Directories.
Education, Rural--United States--Directories.
Education--United States--Societies, etc.--Directories.
Rural schools--United States--Directories.