Columbia subject headings:
Engineering and state--United States--Handbooks, manuals, etc.
Engineers--United States--Handbooks, manuals, etc.
Science and state--United States--Handbooks, manuals, etc.
Scientists--United States--Handbooks, manuals, etc.
United States. Congress--Handbooks, manuals, etc.
Harvard subject headings:
Engineering and state--United States--Handbooks, manuals, etc.
Engineers--United States--Handbooks, manuals, etc.
Science and state--United States--Handbooks, manuals, etc.
Scientists--United States--Handbooks, manuals, etc.
United States. Congress--Handbooks, manuals, etc.
Princeton subject headings: