Columbia subject headings:
Industrial relations--Bulgaria.
Industrial relations--Europe, Eastern.
Organizational change--Bulgaria.
Organizational change--Europe, Eastern.
Harvard subject headings:
Industrial relations--Bulgaria.
Industrial relations--Europe, Eastern.
Organizational change--Bulgaria.
Organizational change--Europe, Eastern.
Princeton subject headings:
Industrial relations--Bulgaria.
Industrial relations--Europe, Eastern.
Organizational change--Bulgaria.
Organizational change--Europe, Eastern.