SEVERNS, W. H. Steam, Air, and Gas Power. Charles E. Tuttle.
Chicago Style (17th ed.) CitationSEVERNS, William H. Steam, Air, and Gas Power. Charles E. Tuttle.
MLA (8th ed.) CitationSEVERNS, William H. Steam, Air, and Gas Power. Charles E. Tuttle.
Warning: These citations may not always be 100% accurate.