Harmer , L. C.
Clerical work measurement / L. C. Harmer - London Her Majesty's stationery office 1968 - 27 p.- - occasional paper number-9 .
116300248
651.4 / HAR
Clerical work measurement / L. C. Harmer - London Her Majesty's stationery office 1968 - 27 p.- - occasional paper number-9 .
116300248
651.4 / HAR