Hennings, P. D. C. Archivmaterialien zu Peter Diedrich Christian Hennings, 1834-.
芝加哥风格引文Hennings, Peter Diedrich Christian. Archivmaterialien Zu Peter Diedrich Christian Hennings, 1834-.
MLA引文Hennings, Peter Diedrich Christian. Archivmaterialien Zu Peter Diedrich Christian Hennings, 1834-.
警告：这些引文格式不一定是100％准确.