"ober, scot . "
gregg college typing: / scot.. ober - 6 ed. - usa : glencoe 1989. - "xix, 63p.; 27 cm."
0-07-038393-6
652. 3 gre
gregg college typing: / scot.. ober - 6 ed. - usa : glencoe 1989. - "xix, 63p.; 27 cm."
0-07-038393-6
652. 3 gre