Board of Trade Journal. London. 1918-04-04: Vol 100 Iss 1114 ( ) Title Board of Trade Journal. London. 1918-04-04: Vol 100 Iss 1114 Volume 100 Publisher...
Board of Trade Journal. London. 1918-04-11: Vol 100 Iss 1115 ( ) Title Board of Trade Journal. London. 1918-04-11: Vol 100 Iss 1115 Volume 100 Publisher...
Board of Trade Journal. London. 1918-03-28: Vol 100 Iss 1113 ( ) Title Board of Trade Journal. London. 1918-03-28: Vol 100 Iss 1113 Volume 100 Publisher...
Board of Trade Journal. London. 1920-07-08: Vol 105 Iss 1232 ( ) Title Board of Trade Journal. London. 1920-07-08: Vol 105 Iss 1232 Volume 105 Publisher...
in the United States//commons.wikimedia.org/wiki/File:Paper_Trade_Journal_1920-06-03-_Vol_70_Iss_23_(IA_sim_paper-trade-journal_1920-06-03_70_23).pdf...
States//commons.wikimedia.org/wiki/File:Engineering_and_Mining_Journal_1920-12-11-_Vol_110_Iss_24_(IA_sim_engineering-and-mining-journal_1920-12-11_110_24).pdf...