1. Encyclopedia of 20th -century technology
Author: / Colin A. Hempstead, editor, William E. Worthington, associate editor
Library: Central Library and Documents Center of Tehran University (Tehran)
Subject: Technology -- Encyclopedias
Classification :
T
9
.
E462
R
2. Encyclopedia of 20th-century technology
Author: Colin A. Hempstead, editor; William E. Worthington, associate editor
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Encyclopedias ، Technology
Classification :
T
9
.
E462
2005
3. Encyclopedia of 20th-century technology /
Author: Colin A. Hempstead, editor ; William E. Worthington, associate editor
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Technology, Encyclopedias
Classification :
T9
.
E462
2005
