Schwank, B. (2014). Petra, Stadtzentrum, Blick von Osten nach Westen, morgens: = Petra, city center, looking east to west, in the morning. Images of the Biblical world online.
芝加哥风格引文Schwank, Benedikt. "Petra, Stadtzentrum, Blick Von Osten Nach Westen, Morgens: = Petra, City Center, Looking East to West, in the Morning." Images of the Biblical World Online 2014.
MLA引文Schwank, Benedikt. "Petra, Stadtzentrum, Blick Von Osten Nach Westen, Morgens: = Petra, City Center, Looking East to West, in the Morning." Images of the Biblical World Online, 2014.
警告：这些引文格式不一定是100％准确.