LITTLEFIELD, G. L. (1974). Office And Administrative Management System Analysis, Data Prosesing, And Office Service G. L. Littlefield, Frank M. Rachel, Donald L. Garuth. Prentice-Hall of India Private.
Chicago-viite (17. p.)LITTLEFIELD, G. L. Office And Administrative Management System Analysis, Data Prosesing, And Office Service G. L. Littlefield, Frank M. Rachel, Donald L. Garuth. Prentice-Hall of India Private, 1974.
MLA-viite (8. p.)LITTLEFIELD, G. L. Office And Administrative Management System Analysis, Data Prosesing, And Office Service G. L. Littlefield, Frank M. Rachel, Donald L. Garuth. Prentice-Hall of India Private, 1974.
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