Columbia subject headings:
IBM Personal Computer--Periodicals--Abstracts.
IBM Personal Computer--Periodicals--Indexes.
Microcomputers--Periodicals--Abstracts.
Microcomputers--Periodicals--Indexes.
Harvard subject headings:
IBM Personal Computer--Periodicals--Abstracts.
IBM Personal Computer--Periodicals--Indexes.
Microcomputers--Periodicals--Abstracts.
Microcomputers--Periodicals--Indexes.
Princeton subject headings: