Não informado. (1940). Engineers digest: Review of engineering progress. Engineer's Digest Publications.
Chicago Style (17th ed.) CitationNão informado. Engineers Digest: Review of Engineering Progress. London: Engineer's Digest Publications, 1940.
MLA (8th ed.) CitationNão informado. Engineers Digest: Review of Engineering Progress. Engineer's Digest Publications, 1940.
Warning: These citations may not always be 100% accurate.