Cita APA (7th ed.)

SCHUMACHER D. (1994). SOFTWARE SOLUTION INC. AP. PROFESSIONAL.

Cita Chicago (17th ed.)

SCHUMACHER D. SOFTWARE SOLUTION INC. BOSTON: AP. PROFESSIONAL, 1994.

Cita MLA (9th ed.)

SCHUMACHER D. SOFTWARE SOLUTION INC. AP. PROFESSIONAL, 1994.