Columbia subject headings:
Science--United States--Societies, etc.--Directories.
Technology--United States--Societies, etc.--Directories.
Harvard subject headings:
Science--United States--Societies, etc.--Directories.
Technology--United States--Societies, etc.--Directories.
Princeton subject headings:
Science--United States--Societies, etc.--Directories.
Technology--United States--Societies, etc.--Directories.