Columbia subject headings:
Abbreviations, Macedonian.
Abbreviations, Serbo-Croatian.
Abbreviations, Slovenian.
Harvard subject headings:
Abbreviations, Macedonian.
Abbreviations, Serbo-Croatian.
Abbreviations, Slovenian.
Princeton subject headings:
Abbreviations, Macedonian.
Abbreviations, Serbo-Croatian.
Abbreviations, Slovenian.