1. Das Wiener Opernhaus: 1869 bis 1945
Author: / Wilhelm Beetz.
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject:
2. Elektrizitätszähler
Author: von Wilhelm Beetz.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Science (General),Science, general.
3. Elektrizitätszähler :
Author: von Wilhelm Beetz.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Science (General),Science, general.
4. Elektrizitatszahler und Messwandler
Author: Beetz, Wilhelm
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Electric meters,، Electric measurements,، Electric transformers
Classification :
TK
275
.
B38
