APA (7th ed.) Citation

Humphreys, H. N., & Westwood, J. O. (1843). British moths and their transformations. W. Smith.

Chicago Style (17th ed.) Citation

Humphreys, Henry Noel, and J. O. Westwood. British Moths and Their Transformations. London: W. Smith, 1843.

MLA (9th ed.) Citation

Humphreys, Henry Noel, and J. O. Westwood. British Moths and Their Transformations. W. Smith, 1843.