P. D. Sell

• Flora of Great Britain, Ireland, Isle of Man, and the Channel Islands
• Flora of Great Britain and Ireland
• Flora of Great Britain and Ireland
• A revision of the North American species of Euphrasia L. (Scrophulariaceae)
• Critical supplement to the Atlas of the British flora
• Nebenwirkungen einiger Pestizide auf Aphidoletes Aphidimyza (rond.) (Diptera : Cecidomyiidae) unter besonderer Berucksichtigung von Frassleistung und Fruchtbarkeit
• Notes on the European species of Scleranthus
• Some North American Eyebrights (Euphrasia)
• Taxonomic and nomenclatural notes on European Fumaria species