Jentgens, G. Archivmaterialien zu Gerhard Jentgens, 1888-.
芝加哥风格引文Jentgens, Gerhard. Archivmaterialien Zu Gerhard Jentgens, 1888-.
MLA引文Jentgens, Gerhard. Archivmaterialien Zu Gerhard Jentgens, 1888-.
警告：这些引文格式不一定是100％准确.
APA引文
