Dr. Petras sounds the alarm : alarming facts about the development of bacteriological and chemical weapons in West Germany disclosed at an international press conference of the Ministry for Foreign Affairs of the GDR on December 6, 1968.
Petras, Ehrenfried.
Germany (East).Ministerium für Auswärtige Angelegenheiten.
[Dresden, Verlag Zeit im Bild,
1969]
Cover title.
Translation of Dr Petras schlägt Alarm.
Biological weapons
Chemical weapons