Littlefield, C. L., & Rachel, F. (1971). Office and administrative management ; systems analysis, data processing, and office services. Prentice-Hall.
Dyfyniad Arddull ChicagoLittlefield, Cleatice L., and Frank Rachel. Office and Administrative Management ; Systems Analysis, Data Processing, and Office Services. englewood Cliffs, N. J: Prentice-Hall, 1971.
Dyfyniad MLALittlefield, Cleatice L., and Frank Rachel. Office and Administrative Management ; Systems Analysis, Data Processing, and Office Services. Prentice-Hall, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.