APA (7th ed.) Citation

Hopkin, S. (1991). A key to the woodlice of Britain and Ireland. Dorset Press.

Chicago Style (17th ed.) Citation

Hopkin, Stephen. A Key to the Woodlice of Britain and Ireland. Dorchester: Dorset Press, 1991.

MLA (9th ed.) Citation

Hopkin, Stephen. A Key to the Woodlice of Britain and Ireland. Dorset Press, 1991.