Columbia subject headings:
Plessey Company--Employees--Effect of technological innovations on.
Telecommunication equipment industry--Employees--Effect of technological innovations on--Great Britain.
Harvard subject headings:
Plessey Company--Employees.
Telecommunication equipment industry--Employees--Effect of technological innovations on--Great Britain.
Princeton subject headings:
Plessey Company--Employees--Effect of technological innovations on.
Telecommunication equipment industry--Great Britain--Employees--Effect of technological innovations on.