APA (7th ed.) Citation

Dennis, R. L. H., & Hardy, P. B. (2018). British and Irish butterflies [: An island perspective. CABI.

Chicago Style (17th ed.) Citation

Dennis, Roger L. H., and Peter B. Hardy. British and Irish Butterflies [: An Island Perspective. Oxfordshire, UK Boston, MA: CABI, 2018.

MLA (9th ed.) Citation

Dennis, Roger L. H., and Peter B. Hardy. British and Irish Butterflies [: An Island Perspective. CABI, 2018.