Não informado. Publications Newsletter. Control Data Corporation, Publications and Graphics Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Publications Newsletter. Saint Paul, Minn: Control Data Corporation, Publications and Graphics Division.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Publications Newsletter. Control Data Corporation, Publications and Graphics Division.
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