APA (7th ed.) Citation

Strachan, I. (1986). The Ordovician graptolites of the Shelve District, Shropshire. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Strachan, I. The Ordovician Graptolites of the Shelve District, Shropshire. London: British Museum (Natural History), 1986.

MLA (9th ed.) Citation

Strachan, I. The Ordovician Graptolites of the Shelve District, Shropshire. British Museum (Natural History), 1986.

Warning: These citations may not always be 100% accurate.