APA

SCHMITZ R., . (1994). FRIST LOOK AT ... DOS 6.0. NEW YORK: MITCHELL-MCGRAW-HILL.

Chicago

SCHMITZ RUTH, . 1994. FRIST LOOK AT ... DOS 6.0. NEW YORK: MITCHELL-MCGRAW-HILL.

Harvard

SCHMITZ R., . (1994). FRIST LOOK AT ... DOS 6.0. NEW YORK: MITCHELL-MCGRAW-HILL.

MLA

SCHMITZ RUTH, . FRIST LOOK AT ... DOS 6.0. NEW YORK: MITCHELL-MCGRAW-HILL. 1994.