Matches in Library of Congress for { ?s ?p Industrial efficiency Hungary.. }
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- 79362448%2F%2Fr94 subject "Industrial efficiency Hungary.".
- 79362932%2F%2Fr94 subject "Industrial efficiency Hungary.".
- 87138641%2F%2Fr942 subject "Industrial efficiency Hungary.".
- 89024210%2F%2Fr94 subject "Industrial efficiency Hungary.".
- 91013817 subject "Industrial efficiency Hungary.".
- 98074444 subject "Industrial efficiency Hungary.".