Cita APA (7a ed.)

ILWIS 1.3. (1992). Ilwis 1.3 user's manual volume 1. ITC.

Cita Chicago Style (17a ed.)

ILWIS 1.3. Ilwis 1.3 User's Manual Volume 1. Netherlands: ITC, 1992.

Cita MLA (9a ed.)

ILWIS 1.3. Ilwis 1.3 User's Manual Volume 1. ITC, 1992.