Lyell, C. (1830). Principles of geology: Being an attempt to explain the former changes of the earth's surface, by reference to causes now in operation. John Murray.
Chicago Style (17th ed.) CitationLyell, Charles. Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation. London: John Murray, 1830.
MLA (9th ed.) CitationLyell, Charles. Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation. John Murray, 1830.
Warning: These citations may not always be 100% accurate.