Cita APA (7th ed.)

(1999). Encyclopedia Americana on CD-ROM 1999 (Version 5.0.). Grolier Educational.

Cita Chicago (17th ed.)

Encyclopedia Americana on CD-ROM 1999. Version 5.0. Danburry, Conn: Grolier Educational, 1999.

Cita MLA (9th ed.)

Encyclopedia Americana on CD-ROM 1999. Version 5.0. Grolier Educational, 1999.