APA (7th ed.) Citation

Field, W. L. W. (1898). A contribution to the study of individual variation in the wings of Lepidoptera. Wilson a. Son.

Chicago Style (17th ed.) Citation

Field, William L. W. A Contribution to the Study of Individual Variation in the Wings of Lepidoptera. Boston, Mass: Wilson a. Son, 1898.

MLA (9th ed.) Citation

Field, William L. W. A Contribution to the Study of Individual Variation in the Wings of Lepidoptera. Wilson a. Son, 1898.