Columbia subject headings:
Harvard subject headings:
Community health aides--Handbooks, manuals, etc.
Medicine, Popular--Handbooks, manuals, etc.
Medicine, Rural--Handbooks, manuals, etc.
Princeton subject headings:
Community health aides--Handbooks, manuals, etc.
Medicine, Popular--Handbooks, manuals, etc.
Medicine, Rural--Handbooks, manuals, etc.