Dreher-Richels, G. Archivmaterialien zu Gisela Dreher-Richels, 1924-2020.
芝加哥风格引文Dreher-Richels, Gisela. Archivmaterialien Zu Gisela Dreher-Richels, 1924-2020.
MLA引文Dreher-Richels, Gisela. Archivmaterialien Zu Gisela Dreher-Richels, 1924-2020.
警告：这些引文格式不一定是100％准确.
