Παραπομπή σε μορφή APA (7η εκδ.)

Pregill, P., & Volkman, N. (1999). Landscapes in history: Design and planning in the eastern and western traditions (2nd edition.). John Wiley & Sons.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pregill, Philip, και Nancy Volkman. Landscapes in History: Design and Planning in the Eastern and Western Traditions. 2nd edition. New York: John Wiley & Sons, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pregill, Philip, και Nancy Volkman. Landscapes in History: Design and Planning in the Eastern and Western Traditions. 2nd edition. John Wiley & Sons, 1999.