Columbia subject headings:
Chemistry--Information services--Handbooks, manuals, etc.
Physics--Information services--Handbooks, manuals, etc.
United States. National Bureau of Standards--Handbooks, manuals, etc.
Harvard subject headings:
Chemistry--Information services--Handbooks, manuals, etc.
Physics--Information services--Handbooks, manuals, etc.
United States. National Bureau of Standards--Handbooks, manuals, etc.
Princeton subject headings:
Chemistry--Information services--Handbooks, manuals, etc.
Physics--Information services--Handbooks, manuals, etc.
United States. National Bureau of Standards--Handbooks, manuals, etc.