APA (7th ed.) Citation

Smith, C. W. (2009). The lichens of Great Britain and Ireland (Much enlarged revision.). The British Lichen Society.

Chicago Style (17th ed.) Citation

Smith, Clifford W. The Lichens of Great Britain and Ireland. Much enlarged revision. London: The British Lichen Society, 2009.

MLA (9th ed.) Citation

Smith, Clifford W. The Lichens of Great Britain and Ireland. Much enlarged revision. The British Lichen Society, 2009.