Robert T. Rambo (n.d.). "2017 Annual Report" (PDF). Philadelphia Museum of Art. p. 19 (de PDF). Arkivita (PDF) el la originalo la 28an de marto, 2018. Alirita la 28an de februaro, 2019. "Admission income of $5.4 million and attendance of 793,000 were essentially at the same levels as 2016."