ProQuest (Firm). (1840). Raub's safety-valves. (To accompany bills H. R. Nos. 484, 485, and 486.). [publisher not identified].
Chicago Style (17th ed.) CitationProQuest (Firm). Raub's Safety-valves. (To Accompany Bills H. R. Nos. 484, 485, and 486.). Washington: [publisher not identified], 1840.
MLA (9th ed.) CitationProQuest (Firm). Raub's Safety-valves. (To Accompany Bills H. R. Nos. 484, 485, and 486.). [publisher not identified], 1840.
Warning: These citations may not always be 100% accurate.