Não informado. (2001). Annual report of the Philadelphia Museums. Philadelphia Museums.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Report of the Philadelphia Museums. Philadelphia, Pa: Philadelphia Museums, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Report of the Philadelphia Museums. Philadelphia Museums, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.