APA (7th ed.) Citation

Schwank, B. (2014). Spoleto, San Salvatore, Portal: = Spoleto, San Salvatore, portal. Images of the Biblical world online.

Chicago Style (17th ed.) Citation

Schwank, Benedikt. "Spoleto, San Salvatore, Portal: = Spoleto, San Salvatore, Portal." Images of the Biblical World Online 2014.

MLA (9th ed.) Citation

Schwank, Benedikt. "Spoleto, San Salvatore, Portal: = Spoleto, San Salvatore, Portal." Images of the Biblical World Online, 2014.

Warning: These citations may not always be 100% accurate.