Manby, G. W. (1830). A lecture, or essay: On the most efficacious means of preserving the lives of shipwrecked sailors, and the prevention of shipwreck. [publisher not identified].
Chicago Style (17th ed.) CitationManby, George William. A Lecture, or Essay: On the Most Efficacious Means of Preserving the Lives of Shipwrecked Sailors, and the Prevention of Shipwreck. [England?]: [publisher not identified], 1830.
MLA (9th ed.) CitationManby, George William. A Lecture, or Essay: On the Most Efficacious Means of Preserving the Lives of Shipwrecked Sailors, and the Prevention of Shipwreck. [publisher not identified], 1830.
Warning: These citations may not always be 100% accurate.