Παραπομπή σε μορφή APA (7η εκδ.)

(1989). dBase IV QueCards / developed by Que Corporation ; text developed by Deborah L. Stone.

Παραπομπή σε μορφή Chicago (17η εκδ.)

DBase IV QueCards / Developed by Que Corporation ; Text Developed by Deborah L. Stone. 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

DBase IV QueCards / Developed by Que Corporation ; Text Developed by Deborah L. Stone. 1989.