"ober, scot . "
softword:a typing practice set: / scot.. ober - 1 ed. - usa : mcgraw-hill 1987. - "xiv, 113p.; 28 cm."
0-07-048037-0
652. 3 obe
softword:a typing practice set: / scot.. ober - 1 ed. - usa : mcgraw-hill 1987. - "xiv, 113p.; 28 cm."
0-07-048037-0
652. 3 obe