Παραπομπή σε μορφή APA (7η εκδ.)

ESRI's User Conference & Environmental Systems Research Institute (Redlands, Calif.). (2001). International user conference 2001: San Diego - USA : proceedings - workshops. ESRI.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ESRI's User Conference και Calif.) Environmental Systems Research Institute (Redlands. International User Conference 2001: San Diego - USA : Proceedings - Workshops. Redlands, Calif.: ESRI, 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

ESRI's User Conference και Calif.) Environmental Systems Research Institute (Redlands. International User Conference 2001: San Diego - USA : Proceedings - Workshops. ESRI, 2001.