Sewior , C. . .. (1969). Commercial computers for students and managera. Longmans.
Tohutoru Kātū Chicago (17th ed.)Sewior , Clifford. Commercial Computers for Students and Managera. London: Longmans, 1969.
Tohutoro MLA (9th ed.)Sewior , Clifford. Commercial Computers for Students and Managera. Longmans, 1969.
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